Top 10 Best Water Purifier In India 2024

Even clear water can identify fine particles, bacteria, microbes, and other dirt invisible to the naked eye. In order for the house tap to provide good quality drinking water, make sure to use the best water purifier. Quite number of models are now available in the market.

Water is the essence of life. That’s why it’s vital that we have access to clean drinking water at all times. Consuming pure and germ-free water is very important for our health.

This is why finding the best water purifier in India is essential to stay healthy and avoid water-borne diseases like Typhoid, Gastroenteritis, Hepatitis, Flu, and Cholera.

In this article, we have reviewed & covered the essentials of choosing the best RO Water Purifiers in India. Read on for everything you need to know about the best water purifier for home in India. When you’re ready to buy, check out our list of top 10 water purifiers from top brands below.

Top 10 Water Purifier In India 2024 with Price

Listed below are the top 10 best Water Purifiers in India. Our experts have handpicked them taking the price, features, and reviews into consideration. We’ve covered all bases and a wide range of budgets, so there should be an option for everybody.

S. No.Best Water Purifier In IndiaPrice
1.AquaSure Amaze Water PurifierRs. 8,999
2.KENT Supreme 2020 11111 Water PurifierRs. 12,999
3.Eureka Forbes GWPDAURUF00000 Water PurifierRs. 11,499
4.HUL Pureit WPNT6R1 Water PurifierRs. 13,799
5.V-Guard Zenora Water PurifierRs. 9,894
6.Blue Star Excella Water PurifierRs. 8,499
7.Aquaguard Marvel Water PurifierRs. 10,999
8.Mi MRB13 Water PurifierRs. 12,899
9.AO Smith Z1 Water PurifierRs. 14,088
10.Prestige Tattva 2.1 Water PurifierRs. 3,495

Best Water Purifier In India 2024

  • AquaSure Amaze Water Purifier
  • KENT Supreme 2020 11111 Water Purifier
  • Eureka Forbes GWPDAURUF00000 Water Purifier
  • HUL Pureit WPNT6R1 Water Purifier
  • V-Guard Zenora Water Purifier
  • Blue Star Excella Water Purifier
  • Aquaguard Marvel Water Purifier
  • Mi MRB13 Water Purifier
  • AO Smith Z1 Water Purifier
  • Prestige Tattva 2.1 Water Purifier

1. AquaSure Amaze Water Purifier

Key features & specifications

  • LED indication alerts
  • Transparent tank
  • Warranty: 1 year
  • Water saving
  • Long lasting cartridge
  • Sleek and compact design
  • Energy saving mode
  • Dimensions (WxDxH): 300 x 238 x 430 mm
  • Installation type: Wall mount or tabletop
  • Storage capacity: 6 to 10 L
  • Purification modules: Sediment Filter, Chemi Block, RO Membrane, UV Disinfection Chamber
  • Post carbon membrane type: Thin Film Composite
  • Purification stages: 5
  • Applicable TDS Range: 1 – 2000 mg/l
  • Overflow Protection

Things we like about this water purifier

Thanks to the RO, UV and MTDS purification technologies, the AquaSure Amaze always gives you absolutely safe & tasty drinking water. The MTDS enables to adjust the taste of water. This water purifier can treat water that has a TDS level of up to 2000 ppm. It reduces this level down to about 90% so that you get water that is safe and healthy. Thanks to the advanced TDS regulator, you can now adjust the taste of water as per your liking. This purifier features a huge tank to ensure that you don’t run out of clean and safe drinking water.

With a 6000 liters cartridge life, this water purifier will ensure that you have safe water to drink for a long time. In addition to this, it comes with smart indicators to give you a user-friendly and hassle-free experience. The purifier also has an energy saving mode automatically switches off the power supply to the water purifier once the water tank is full. This prevents the wastage of energy, thereby helping you save on your monthly bills. To add the elegance to your kitchen’s, the water purifier can easily be wall mounted or kept on the countertop. All these features make this water purifier the best water purifier for home in India.  


  • Smart LED indicators for purification, tank full and power-on status
  • 6000 L cartridge life to ensure that you have safe water to drink for a longer duration
  • Advanced TDS regulator (MTDS) to adjust the taste of the water as per the water source
  • Transparent tank to allow you to check water levels easily
  • Purified stored water can be dispensed even without electricity


  • Some customers faced issues with customer care

2. KENT Supreme 2020 11111 Water Purifier

Key features & specifications

  • RO+UF+TDS Control+UV In-tank
  • Retains essential minerals
  • High purification capacity
  • High storage capacity
  • 1 Year Warranty + 3 Years Extended Service Free
  • Quality Certifications by NSF International (USA), WQA (USA) and CE Certification
  • Wall-mounted water purifier
  • Inbuilt auto-flushing system
  • Total capacity: 18L
  • Overflow protection
  • Filter life: 11250 L
  • Filter type: Post Carbon, Carbon Block Filter, Sediment, UF
  • Membrane type: RO Membrane, UF Membrane
  • Storage tank material: Non-toxic, food safe, ABS food grade plastic
  • Indicators: Purification, power
  • Alarms: UV Fail Alarm, Filter Change Alarm
  • Filtration capacity: 15L/hr
  • Purification capacity: 75L
  • Dimensions (WxHxD) 270 x 630 x 430 cm

Things we like about this water purifier

KENT Supreme is a next gen and the best RO water purifier in India with KENT’s patented Mineral ROTM Technology and multiple purification process of RO+UF+TDS Control that makes water 100% pure. This KENT purifier removes bacteria, viruses, chemicals, and even dissolved impurities such as arsenic, rust, pesticides, and fluorides to make water 100% pure and healthy that meets drinking water standards of IS:10500. This RO purifier from KENT also comes with a TDS control valve. The unique feature allows controlling the desired TDS level to retain essential natural minerals in purified water.

The high purification capacity up to 20L/hr and a storage capacity of 8L ensure that you get a continuous supply of water even in the absence of electricity. The water level indicator helps you keep a track of the level of purified water in the storage tank. Best suited for Indian homes and offices, this purifier is ideal for purification of brackish/tap water/municipal corporation water supply. Also, KENT Purifiers are the only purifiers to offer 3 Years Extended Free Service after 1 Year Warranty to bring peace of mind as well as ensuring to give you 100% pure water during this period.


  • Features the latest RO water purification technology
  • TDS control system allows adjustment of TDS level of purified water which retains essential natural minerals in drinking water
  • Comes with an innovative, patented technology which offers 0% water wastage
  • RO and UF Membranes fused inside membrane housing prevent tampering
  • Push-fit components for leak-proof & maintenance free performance


  • Zero wastage is a marketing gimmick by KENT

3. Eureka Forbes GWPDAURUF00000 Water Purifier

Key features & specifications

  • Patented Active Copper Technology
  • Advanced Mineral Guard Technology
  • Unique UV E-Boiling
  • Ultra-Filtration
  • Supreme aesthetics
  • Dimensions (WxDxH): 316 x 251 x 462 mm
  • Installation type: Wall Mount / Tabletop
  • Storage capacity: 6 L to 10 L
  • Applicable TDS Range: 1 – 200 mg/l
  • Water Flow Rate: 550 to 650 ml/minute
  • 8 stage purification
  • I-Filter
  • Chemi-Block
  • Membrane life enhancer
  • Reverse osmosis membrane
  • UV chamber
  • TDS regulator
  • 1 year warranty

Things we like about this water purifier

Superior design and advanced technology is what best defines Aquaguard Aura UV+UF. It delivers optimum purification through its UV+UF technology. The Ultra Filtration provides an added layer of purification giving you crystal clear water free from microbial contamination. Its i-Filter removes fine suspended particles like mud, dust, sand, or dirt from your drinking water. The Chemi-block ensures that your water doesn’t contain any harmful chemicals like chlorine or other organic impurities. Its UV chamber is essential because it eliminates water-borne bacteria, virus, and protozoa.

The Mineral Guard technology makes sure that the water retains beneficial minerals like calcium and magnesium which ordinary purifiers deplete. Active Copper Cartridge enhances not only the immune system but also the taste of water, so you don’t feel you’re drinking absolute tasteless water. The Eureka Forbes Aquaguard Enhance Water Purifier comes with activated carbon which removes organic compounds giving water a shiny, polished look that earns your trust. Get home the Eureka Forbes Aquaguard Aura that boasts of Intel e-boiling & automatic mineral level modulator. Equipped with all these features, we can surely say that this is one of the best water purifier for home use.


  • Active Copper Technology provides goodness of copper in water
  • UV e-boiling technology ensures that every drop of water is as healthy & safe as water boiled for 20 minutes
  • Ultra-Filtration imparts crystal clear clarity to drinking water
  • Mineral Guard Technology to retain essential minerals in your water
  • Compact & stylish design that enhances your kitchen aesthetics


  • Running cost is too high year on year basis

4. HUL Pureit WPNT6R1 Water Purifier

Key features & specifications

  • Capacity: 10 liters
  • Material tank type: Food grade engineered plastic
  • Advanced 7 stage purification
  • Can be used for TDS up to 2000 ppm
  • Dimensions (HXWXD): 488 x 360 x 294 mm
  • Purification technology: RO+UV+MF
  • Warranty: 1 year on the product
  • Mineral enriched water
  • Eco recovery technology
  • User interface: LED
  • Purification Speed (lph): Up to 24
  • PP Melt Blown Pre-Sediment Filter
  • Pre-RO Carbon Filter
  • Mesh Filter
  • Reverse Osmosis Membrane
  • UV Reactor
  • Post-RO Carbon Filter
  • Micro Filter Membrane
  • Membrane Type: Thin-film composite spiral wound
  • Length of power adaptor cord: 1.5 meters
  • USEPA compliant
  • Purification capacity: 6000L
  • Indicators: Tank Full, Sediment Filter Cleaning/Replacement, Germ Kill Kit Change Indicator

Things we like about this water purifier

The new Pureit Eco Water Saver Mineral RO+UV+MF is powered with Eco Recovery Technology that delivers efficient purification giving you high water saving compared to any other best RO in India. It purifies water through advanced 7-stage RO+ UV+MF purification to remove harmful viruses, bacteria, chemicals, and heavy metals and makes it 100% safe. The purified water is enriched with several essential minerals, such as calcium and magnesium, which help enhance its taste. Whether your source of water is municipal, borewell or tank water, this purifier is efficient to treat all types of water.

This Pureit water purifier comes with a large storage tank that has a capacity of 10 L so that even large families can always drink potable water. It helps minimize the amount of water that is wasted, thereby helping you save about 80 glasses of water every day. This water purifier’s double purity lock includes an advance alert that warns you 15 days before filter change and auto shut-off feature that locks the purifier if the filter isn’t changed. It comes with dual water dispensing that allows you to choose between copper charged and RO water. Say goodbye to waterborne diseases with this leading best water purifier in India.


  • Large water storage capacity makes it ideal for a medium to large family
  • 100% food grade plastic prevents harmful toxins from leaching into water
  • Advanced alert system warns you 15 days before the expiry of the Germkill kit
  • Meets the toughest safety standards of USEPA
  • Advanced 7 stage purification ensures 100% safe and sweet drinking water


  • No water level indicator

5. V-Guard Zenora Water Purifier

Key features & specifications

  • Can treat water with TDS up to 2000ppm
  • Made for Indian water conditions
  • 8 stage advanced purification
  • Double layer protection with RO + UV
  • Delivers natural taste
  • Intelligent design
  • Free external pre-filter
  • 7L large storage tank
  • 3 LED indicators: Purification On, Tank Full & Low Pressure
  • Wall mount and tabletop installation
  • True 1-year comprehensive warranty
  • Two pre-emptive maintenance services
  • On-call support
  • Free installation and pan-India service support
  • Long lasting filters
  • pH Balancer
  • Dimensions: Width – 34.5 cm; Height – 45 cm; Depth – 20.5 cm
  • Pre-filter with large dirt-holding capacity
  • Anti-microbial pre-carbon GAC filter
  • Dual installation options
  • Next generation UV chamber for added safety

Things we like about this water purifier

The V-Guard Zenora Water Purifier is made for Indian water conditions. Its intelligent design, combining world-class RO Membrane with effective multi-stage pre- and post-treatment, guarantees effective elimination of impurities commonly found in Indian water supply and long-lasting performance with minimal maintenance hassles. Ideal for large families, the 7L storage tank with 100% food-grade plastic keeps the water safe. Designed with utmost precision, Zenora’s multi-stage purification process is divided into three stages: Pre-RO Treatment, RO Treatment, and Post- RO Treatment.

The first stage protects the sensitive RO Membrane by removing large and fine particles, suspended solids, bad odour, excess chlorine, and similar impurities. The second stage comprising wide-surface RO Membrane – eliminates TDS (Total Dissolved Solids) and Heavy Metals. The third stage enhances the taste of the RO treated water with a unique calcite mineral balancer and provides an extra layer of protection against micro-organisms assuring of 100% safe and pure water. This highly optimized RO unit delivers long-lasting performance and effectively reduces TDS and impurities. In short, V-Guard Zenora Water Purifier is the best water purifier for hard water.


  • Long-lasting filters with world class RO membrane and next generation UV chamber
  • Perfectly treats water with TDS up to 2000ppm
  • The careful composition of each filter ensures that filters complement each other to withstand the harshness of Indian water for much longer periods
  • Equipped with 3 LED Indicators – ‘Purification On’, ‘Tank Full’ and ‘Low Pressure’ – to keep you informed about the health of the machine all times
  • Comes with a unique mineral balancer that neutralizes the acidic nature of the water by balancing its pH level


  • No water level indicator

6. Blue Star Excella Water Purifier

Key features & specifications

  • Double layered RO+UV protection
  • Copper impregnated activated carbon
  • Storage capacity: 6 liters
  • Installation type: Wall mount/Countertop
  • 1 year warranty on product
  • Purification stages: 6
  • Sediment filter
  • Pre-carbon filter
  • RO membrane
  • Post-carbon filter with aqua taste booster
  • UV Lamp
  • Purification capacity: 6000 liters
  • Total dissolved solids (TDS) levels (ppm): 2000
  • UV lamp life span in hrs: 6000
  • Dimensions: Width 362mm; Depth 244mm; Height 425mm
  • Auto shut off
  • Overflow protection
  • Indicators: Purification, Power, Tank Full
  • Filtration capacity: 12 L/hr

Things we like about this water purifier

Blue star is one of the best water purifier brand in India. With this Blue Star water purifier at home, you can enjoy always drinking safe and purified water. The water purifier has a 6-stage purification process to ensure that the water that you drink is pure and safe. It features a pre-sediment filter, pre-carbon filter, sediment filter, RO membrane, post-carbon filter with Aqua Taste Booster (ATB), and a UV lamp. The Aqua Taste Booster (ATB) of the water purifier makes use of calcite media so that the taste of the water that you drink is enhanced. It also helps balance the pH level of the water so that every sip you take is delightful.

Thanks to the double-layered protection that this water purifier provides, you can drink that’s safe for consumption. RO helps remove ions, suspended particles, microorganisms, and dissolved impurities with ease. And UV helps deactivate microorganisms such as bacteria, viruses, and more. Any smell or any organic compounds in the water will be efficiently removed by the Copper Impregnated Activated Carbon. It also possesses anti-bacterial properties. This water purifier features a tank full indicator that lets you know when the tank is full so that you don’t have to constantly keep checking.


  • Double layered RO+UV protection to ensure that you drink absolutely safe water without any compromises
  • Aqua Taste Booster (ATB) to enhance the taste and help maintain optimum pH level of water
  • RO membrane purification capacity up to 285 liters/day due to a super-efficient, high quality RO membrane
  • Copper Impregnated Activated Carbon to remove smell, odor, and volatile organic compounds
  • Super fine sediment filter to remove even the finest of sand, mud, dust and other suspended particles


  • When it runs, it makes a lot of noise

7. Aquaguard Marvel Water Purifier

Key features & specifications

  • 7-Stages of Purification
  • Active Copper Technology
  • Mineral Guard Technology
  • Taste Adjuster (MTDS)
  • UV E-Boiling Technology
  • RO Technology
  • Chemi-Block
  • contemporary design with supreme aesthetics
  • Dimensions (WxDxH): 320 x 275 x 410 mm
  • Installation Type: Wall Mount / Tabletop
  • Storage Capacity: 6 L to 10 L
  • Applicable TDS Range: 1 – 2000 mg/l
  • 1 year manufacturer warranty from date of purchase
  • Filter Life: 6000 liters
  • Membrane Type: Thin Film Composite RO Membrane
  • Body material: ABS Food Grade Plastic

Things we like about this water purifier

Superior design and advanced technology is what best defines Aquaguard Marvel RO+UV+MTDS. It delivers optimum purification through its dual RO+UV technology. Taste Adjuster ensures that the consumer gets sweet tasting water irrespective of the source of water. Its Active Copper Technology provides Goodness of Copper in water and Mineral Guard technology retains natural essential minerals present in water. Built to purify water from multiple sources, this machine is not only technologically advanced but also guaranteed to beautify your kitchen making it a marvel for family & guests.

The Aquaguard Marvel RO+UV+MTDS Water Purifier comes with a futuristic design that conceals the motor and filter in a body apt for wall mounting. Its sleek design can fit in any corner of your kitchen. The smart LED indicator is useful and comprehensible for operating by anyone and also adds to the smartness of your kitchen. It uses authentic cartridges ensuring that your health is protected. The Aquaguard Marvel RO+UV+MTDS Water Purifier is made with flexible installation features which lets you wall-mount it or put on table-top without any hassle.


  • Active copper technology provides goodness of copper in water
  • Mineral guard technology retains essential minerals in your water
  • Taste adjuster (MTDS) enables adjustment of taste depending upon the source of water
  • UV E-Boiling technology ensures that every drop of water is as healthy & safe as water boiled for 20+ minutes
  • RO technology kills disease causing viruses, bacteria, protozoa & cysts


  • Annual maintenance cost is a bit high

8. Mi MRB13 Water Purifier

Key features & specifications

  • 5 stages of purification
  • Advanced Penta purification process
  • PPC Filter (Polypropylene Cotton + Activated Carbon)
  • RO Filter (Reverse Osmosis Filter)
  • PAC Filter (Post Activated Carbon Filter)
  • In-tank UV sterilization
  • India’s 1st Smart WP With DIY Filter Replacement
  • Smart App Connectivity
  • Real-time TDS and Filter Life Monitoring
  • Longer filter life
  • Free installation
  • Warranty: 1-year limited warranty
  • 7-liter capacity
  • Auto water level detector
  • Filter life of up to 12 months
  • FDA approved material with assured safety
  • Contemporary and environment friendly design
  • Product Dimensions: 30 x 20.7 x 52.3 cm

Things we like about this water purifier

Mi is the best water purifier brand in India with respect to smart features. The Mi MRB13 Water Purifier come with an advanced Penta purification process in which the water passes through 5 stages of purification to provide quality drinking water. With the RO purification accuracy of 0.0001 micron, it effectively gets rid of chemicals, residual chlorine, visible particulates, bacteria, and other compounds that could harm your health. With a highly efficient TDS reduction capacity of up to 90%, you can trust the quality of water delivered by the Mi Smart Water Purifier (RO+UV). The storage tank is made with material approved by USFDA.

Unlike most water purifiers in the market, the Mi Smart Water Purifier (RO+UV) features an UV light inside the water tank. This assures that all the water gets treated by the UV light, making sure the water is disinfected of any micro-organisms, which can cause water borne diseases. With the Mi Smart Water Purifier (RO+UV), you don’t have to depend on the customer service team to check and replace your filters. Maintenance is simplified with the smart design that allows you to replace the filter all by yourself in under 30 seconds.


  • Features Penta Purification Process for complete filtration of your drinking water
  • Filters can be changed by yourself in under 30 seconds without the help of a technician
  • Real-time TDS monitoring helps you know the quality of your drinking water
  • The In-Tank UV light disinfects your water of any micro-organisms
  • Smart app connectivity offers additional benefits


  • Filters are extremely expensive and not long-lasting

9. AO Smith Z1 Water Purifier

Key features & specifications

  • 5 Stage Purification
  • Tank material: Virgin food-grade ABS
  • Child Lock
  • Suitable for water having less than 200 TDS
  • Dimensions: 36.9 cm (Length) x 32.6 cm (Width) x 48.2 cm (Height)
  • 1-year warranty
  • Pre-filter
  • Sediment filter
  • Silver activated post carbon filter
  • UV Lamp
  • UFSS (For Hot water only)
  • Dispenses hot water at the press of a button
  • Digital display
  • India’s first water purifier with night assist glow effect
  • UV life alert indicator
  • Purifier Placement: Wall mount + Tabletop placement
  • Storage tank capacity: 9.2 liters (approx.)
  • Storage tank capacity (Hot tank): 0.8 liters (approx.)
  • Made from food safe, non-toxic, engineering grade plastics
  • Flow rate: 30 liters per hour

Things we like about this water purifier

A.O. Smith Z1 Water Purifier has 5 stages of purification system, wherein the water is passed through the various stages and progressively filtered to get purified water which is stored in the inbuilt storage tank. The Pre-filter is used to remove physical contaminants such as dirt, dust, soil particles, turbidity present in the water. The Fine Sediment filter is used to remove finer physical contaminants present in the water. The purifier also has a Carbon block with high adsorption capacity reduces harmful chemicals including pesticides, volatile organic compounds, residual chlorine etc., from water.

This purifier from A.O. Smith also comes with a UV lamp and UF (Ultra fine) filter. While the UV lamp disinfects the water by eliminating water-borne disease-causing micro-organisms like bacteria and virus, the UF (Ultra fine) filter removes deactivated microbial cells and cysts. This UV Water Purifier has the child lock feature inbuilt to meet the international standards of safety for you and your loved ones. It is designed to ensures protection from hot water spillage when you don’t intend to take hot water. Z1 also has indicators for changing the Pre-filter, Fine Sediment filter, Carbon block, UF (Ultra Fine) filter, UV ON and UV life alert. This water purifier has proven its worth for lakhs of users in India.


  • Comes with a 5-stage purification process to give you clean and pure drinking water
  • UV Life Alert indicates in advance when the UV lamp needs to be changed
  • Digital display provides useful information like water temperature, tank-full and filter alerts, power mode and more
  • Gives you purified hot water with added minerals at two temperature choices of 45°C and 80°C
  • Glow effect guides you to your water purifier at night and makes your kitchen look good


  • No RO purification

10. Prestige Tattva 2.1 Water Purifier

Key features & specifications

  • 3 Purification Stages
  • Capacity: 16 liters
  • Warranty: 1 year warranty
  • High filtration rate
  • Chemical-free purification
  • Copper storage container
  • Advanced FACT filters
  • LOG 6:4:3 purification standard
  • Purifying Technology: Gravity Based
  • Detachable Storage Tank
  • Overflow Protection
  • Filter Life: 1500L
  • Filter Type: Pre-Filter
  • Storage Tank Material: Copper
  • Placement: Countertop
  • Self-installation
  • Dimensions: Width – 31.5 cm; Height – 36.5 cm; Depth – 31.5 cm
  • Purification features: UF, Activated Carbon, Gravity Based Purification
  • Municipal Water Supply: 1-200ppm TDS

Things we like about this water purifier

Introducing Tattva Water Purifier-a unique and one-of-a-kind water purifier which is a blend of tradition and modernity. Equipped with a FACT filter, this water purifier facilitates three-stage filtration and reduces the level of many pollutants, such as pathogenic bacteria and water-borne viruses. This way, it gives you safe and clean drinking water. The filtration process does not use chemicals making it very safe for you and your family. Furthermore, the fact that it can function without electricity makes it even more desirable. Moreover, the compact size of this purifier is easy to fit anywhere.

Tattva brings with it the goodness of Indian tradition, with a copper storage container. As copper is believed to offer numerous health benefits for digestion, immune system, hemoglobin synthesis, and bones, this water purifier is the ideal addition to your home. It also has anti-aging properties, which slows aging. Copper also curbs the growth of toxins, ensuring that you drink clean and hygienic water. Prestige Water Purifier Tattva promises an average filtration rate of 9L per hour and has 16 liters of capacity. Provide safe and hygienic drinking water to your family with this Prestige Water Purifier. With over 1 million satisfied users, this water purifiers can be considered as the best water purifier in India.


  • Comes with the goodness of copper that not only has natural antimicrobial properties but also kills bacteria and imparts additional health benefits
  • Removes up to 99.99% of pathogenic bacteria and water-borne viruses
  • Does not require electricity to function; can be used in areas with erratic power supply
  • Advanced FACT filters allow for greater purification capacity and a longer filter life
  • Durable and long-lasting copper container is very easy to maintain


  • Some customers complained about tap leakage problems

Water Purifier Buying Guide: How to Choose the Best Water Purifier in India?

Confused about which is the best water purifier in India in 2024? There are water purifiers that take the form of a very precise mechanism, while others are electronic. To get a clearer idea, you need to know what exactly it is for and what it is made of.

1. Types Of Water Purifiers

The most common types of domestic water purifiers are Reverse Osmosis (RO) purifiers, Ultraviolet Rays (UV) purifiers, Ultrafiltration (UF) purifiers and Gravity based purifiers.       

  • Reverse Osmosis (RO) water purifiers: Reverse osmosis (RO) is a water purification process that uses a partially permeable membrane to remove ions, unwanted molecules and larger particles from drinking water. This system provides very healthy and fully purified water. The liquid passes through three successive stages before leaving the tap: a sediment filter to remove fine particles, an activated carbon filter to banish chlorine then a very fine membrane which retains the remains of impurities. The drawback of this purifier is undoubtedly its low flow rate. For 4 liters of water to be purified, the user can only obtain a liter at most.
  • Ultraviolet Rays (UV) water purifiers: In a UV water filtration system, UV (Ultraviolet) rays are used to kill the harmful bacteria from the water. A UV water purification system typically consists of a UV light source with an output of around 254 nanometers that can effectively eliminate up to 99.99% of bacteria and viruses, including those associated with water-borne illnesses such as Typhoid, Gastroenteritis, Hepatitis, Flu, and Cholera.
  • Ultrafiltration (UF) water purifiers: Ultrafiltration (UF) is a membrane filtration process similar to Reverse Osmosis, in which hydrostatic pressure forces the water against a semi-permeable membrane. Suspended solids, bacteria, viruses, endotoxins, and other high molecular weight pathogens are retained, while water and low molecular weight solutes pass through the membrane.   
  • Gravity based water purifiers: Gravity-based water purifiers are non-electric purifiers that use microfiber mesh, polisher modules, activated carbon modules and/or UF technology to remove impurities.    

2. Water Quality

Another thing to consider when buying a best water purifier is the quality of the water supply you get in your home. The quality of the water supply depends on the water source. If the water supply in your home is supplied by municipalities and it comes from natural resources like lakes, river, and rainwater harvesting technique, then you’re getting soft water.

If the water supply in your home comes from underground sources like borewells, tube wells, hand-pumps and wells then you’re getting hard water. The amount of total dissolved solids (TDS) is comparatively higher in hard water than soft water. If you’re getting hard water, opt for a RO water purifier. Go for a UV water purifier if the water quality is soft. If you are getting hard as well as highly contaminated water, you can opt for RO+UV water purifiers.

3. Certification of Purity

Another point to consider when looking out for the best water purifier is a certification of purity. Most brands these days usually give a certificate of purity with the water purifier. This certificate is a mark of the authenticity of the brand. It also ensures that the water dispensed from the water purifier is of high quality and therefore safe to drink. Water purifiers usually have one or two of the following certifications.

  • IS 16240: 2015 standard covers Reverse Osmosis (RO) based point of use water treatment system.      
  • IS 7402:1986 /2011 standard certifies that the ceramic filters used in the purifier can arrest impurities to the finest range possible, including particulate and bacterial impurities.
  • IS 14724: 1999 indicates that the purification process is carried out through a combination of UV film and rays.
  • IS 10500:2012 gives an assurance that the end product is free from coliform, pesticide residues and other chemical contaminants.

NSF, WQA, ISI, and CE are some of the other certifications to look for when selecting a water purifier.

4. Other pointers to consider

  • Installation: A few water purifiers are designed to be used as a countertop kitchen appliance while some brands also manufacture water purifiers that can be hung on the wall to keep the countertop clutter-free. Decide upon a suitable place for your water purifier – countertop or wall and then make a final decision.
  • Electricity Needs: Based on their electricity needs, water purifiers are of two types – electric or non-electric. While electric purifiers need electricity to function, non-electric water purifiers can function without electricity and are usually gravity-based. Take into account the power situation in your area and then take the final buying decision.
  • Storage Capacity: If you reside in an area that has frequent power cuts or unreliable water supply or you live in a joint family, opt for a water purifier that has a larger storage capacity. This will ensure a continuous supply of pure and contamination-free drinking water.
  • After Sales Services: Water purifier require frequent servicing from time to time. Poor after-sales services can cause a lot of problems and the customers have to wait for a longer time to get their problems solved. Therefore, before making any final decision on which water purifier to purchase, do enquire about the after-sales services offered by the brand.
  • Digital Display: Most water purifiers come with basic display for purifier on/off, tank full, etc. Some advanced purifiers also come with an LED display that shows fault alert, membrane change, UV fail, TDS level indicator, purity indicator, etc.
  • Mineral Fortification Technology: Some advanced water purifiers come with a mineral fortification technology that adds essential minerals which enhances the taste, quality and also balances the pH of purified water.
  • In-built TDS controller: A few advanced water purifiers come with an in-built TDS controller that controls the TDS (Total Dissolved Solids) levels of water. When the TDS levels of input water are not so high, the TDS Controller can be used to increase the TDS of purified water to a healthy level. 
  • Purification Capacity: Purification capacity is the flow rate at which water is purified in an hour. A higher flow rate can result in unsuccessful purification of water while slower flow rate takes a lot of time to give you one liter of clean water. Therefore, go through the water purifier specifications carefully and look out for the purification capacity. Ideally, a purifier should give you anywhere between 12-15 liters/hour.

Frequently Asked Questions About Water Purifier (FAQs):

1. Are water purifiers safe?

Water purifying chemicals in liquid, tablets, or powder form are added directly to untreated water to decontaminate it. They act directly on harmful organisms to destroy them. When used correctly, water purifying chemicals are generally safe.

However, when used inappropriately or excessively, water purifying chemicals lead to immediate irritation of the mouth, throat, and stomach causing symptoms such as burning and irritation in the mouth and throat, nausea, vomiting, and abdominal pain.

2. What is the RO water purifier?

Reverse osmosis (RO) is a water purification process that uses a partially permeable membrane to remove ions, unwanted molecules and larger particles from drinking water. Reverse Osmosis filtration is the perfect solution if you’re looking to improve the taste, odor, and appearance of your water.

3. Which water purifier is better for municipal water?

If the water supply in your home is supplied by municipalities and it comes from natural resources like lakes, river, and rainwater harvesting technique, then you’re getting soft water. Go for a UV water purifier if the water quality is soft.

4. How can we purify water at home?

The following are the common methods of at-home water purification – Boiling, Use of Iodine solution, tablets or crystals, Use chlorine drops, Use water filter, Use Ultraviolet Light and Distillation

5. What are the impurities found in water?

Two forms of impurities are found in drinking water – suspended and dissolved.

Suspended impurities are suspended solids like mud, dust, sand, bacteria, viruses, etc. that are not completely soluble in water and are present as particles.

Dissolved impurities are impurities like pesticides, arsenic & fluoride and heavy metals salts like mercury, lead, copper, cadmium, etc. that are soluble in water.

6. What is the desirable quality of drinking water?

As per BIS (The Bureau of Indian Standards), the desirable quality of drinking water is water that has a TDS (Total Dissolved Salts) content of 500 ppm or less. If such quality is not available, the compromise level is water with a TDS of up to 2000 ppm.

7. When should the filter cartridges be changed?

The frequency of changing your filter cartridges depends on water quality and usage. If you get highly contaminated water supply in your home or filter large quantities of water, you should change your filter cartridges every 3 months. It is recommended to change your sediment, carbon and de-ionization cartridges every 6-8 months and RO membrane every 2 years.

8. How Does a Water Purifier Works?

The answer depends on what type of water purifier you are using. Two of the most common types include filtration, and ultraviolet purification.

Filtration Purifiers: The two most common types of water filtration are sediment filters and carbon filters. Sediment filters, which use a medium like sand and charcoal, remove organisms like bacteria and parasites. Carbon filters, which use activated carbon (charcoal), remove contaminants like chlorine, herbicides, and pesticides.

Ultraviolet Purifiers: Ultraviolet purification uses short-wave ultraviolet light to kill harmful microorganisms like bacteria and viruses. This method is often used in conjunction with other purification methods.


We have put together a comparison to help you better understand how to choose the best water purifier in India. To fully enjoy the benefits of this product, choose a model of excellent quality regardless of the price at which it is offered.

We strongly recommend buying the KENT Grand 8-Litres Wall-Mountable RO + UV/UF + TDS Controller (White) 15 ltr/hr Water Purifier with its amazing features and high accuracy in water purification and filtration.

The selection of the most suitable water purifier for your home may vary based on various factors like the type of water supply, filtration technology, electricity needs, storage capacity, etc. We hope our article gives you the relevant information required to make an informed buying. In case you are unable to find the best water purifier here, head over to Amazon India to browse through the store’s exhaustive collection.

In case, you require any further assistance to select the best water purifier for home, please comment below and we will get back to you with the best possible solution.

Loved our blog on the best RO water purifier in India? Do share it with your friends on Facebook, Twitter, and WhatsApp.

Photo of author

Written By Shubham Sharma

I am a passionate food enthusiast and kitchen expert with years of experience in cooking and baking. With a keen eye for detail and a deep understanding of various culinary techniques, I enjoys sharing their knowledge and expertise with others, and regularly contributes to food blogs and other online publications.

Leave a Comment