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Best UV Water Purifiers in India8 min read

UV water purifier

What is a UV water purifier?

A UV water purifier manages microbiologically unsafe water with germicidal ultraviolet light. The UV wavelength scrambles the DNA of living organisms in the water, so they can no longer reproduce and make you sick. Bacteria can embed and replicate in your digestive tract if you drink bacteria-infested water. Ultraviolet radiation renders bacteria, viruses, parasites, and fungi unable to produce by damaging the nucleic acids of their DNA. 

How does a UV water purifier work?

A UV water filter exposes living organisms such as bacteria, viruses, and cysts (Cryptosporidium and Giardia) to a germicidal ultraviolet wavelength. The DNA of dangerous germs is broken by UV radiation with a wavelength of 254 nm, preventing them from reproducing. Bacteria cannot spread disease through drinking water because of ultraviolet light.

The amount of energy delivered by a UV water purifier is measured in MJ/cm2. The higher the dosage, the greater the ability to treat contaminated water. This energy reaches a sufficient threshold to render most bacteria in water inactive.

UV purification is the best solution when your water contains bacteria, or you want extra protection in a natural disaster. When your city water plant issues a Boil Water Advisory, the water has already been contaminated. A UV system keeps your water free of harmful viruses and pathogens when the water supply is compromised. 

If you own a private well or your water is stored in a storage tank, you’ll need a UV water purifier unless you disinfect your water with chemicals. The excellent owner is responsible for removing bacteria from water, and ultraviolet treatment is the most effective way to do it. Before UV disinfection, a Rusco spin-down filter is an excellent pre-filter for well water. 

What is inside a UV water purifier?

 The whole system is enclosed in a chamber with a UV water purifier. The UV lamp, which emits a germicidal radiation wavelength (UV-C) to destroy live organisms, is housed in the glass quartz sleeve. The quartz glass sleeve is transparent to the UV wavelength, allowing UV light to penetrate the glass and disinfect the water. A quartz sleeve protects the UV lamp from the water because water and electricity don’t mix well—one or two O-rings to seal the whole system together.

UV lamps run on mercury vapor. The mercury vapor is loaded into a UV lamp in the form of tiny beads. Occasionally, you may see beads rolling around in the lamp. These beads are mercury before it’s vaporized to create fuel for the light.

Is a UV water purifier good for your health?

UV (ultraviolet) rays eliminate hazardous germs in water in a UV water filter system. As a result, the water is completely pathogen-free. The UV water purifier is beneficial to one’s health because it destroys all hazardous bacteria in the water without altering its flavor.

What are the advantages of a UV water purifier?

  • There is no need to deal with potentially hazardous substances (chlorine)
  • Effectively immediate disinfection (no contact tanks like chlorine)
  • Low-power consumption is good for the environment (no disinfection by-products)
  • No moving parts to wear out or replace UV does not change the taste or odor of the water
  • More inadequate equipment investment versus other disinfection options, Simple maintenance (with proper pre-treatment).
  • Disaster protection amid natural calamities. A UV system keeps your drinking water safe when city water is contaminated.

What are the disadvantages of a UV water purifier?

  • Contaminants are not removed. Because UV only deactivates living organisms, prefiltration is required to remove any loose particles.
  • The water is heated using this device. The UV lamp heats the water when it is not running and is sitting in the chamber.
  • Does not work during a power outage. A UV system requires electricity to run.

How to maintain your UV water purifier system?

UV water purifiers can endure for years, but they need maintenance like other water treatment devices. On the other hand, UV systems are simple to maintain and run constantly.

Once a year, replace the UV lamp. UV lamps use mercury vapor as a fuel to ignite the UV wavelength. The mercury in the lamp evaporates with time. A UV light can last up to 9,000 hours (375 days) (if you run it all the time).

Cleaning the quartz sleeve is required. The glass quartz sleeve encircling the lamp must be clean for the UV light to perform correctly. When changing the light, inspect the quartz sleeve for cleanliness.

Every two years, replace the quartz sleeve. Because they’re fragile, having a different sleeve on hand is a good idea.

List of 5 best UV water purifiers in India:

Eureka Forbes Aquaguard Aura 7L water purifier UV e-boiling+Ultra Filtration with Active Copper, Mineral Guard Technology, 6 stages of purification Black & Copper 

Product details:

With six stages of water purification and a higher water storage capacity of 7 liters, the Eureka Forbes Aquaguard Aura 7L water purifier UV e-boiling+Ultra Filtration with Active Copper, Mineral Guard Technology, six stages of purification Black & Copper, has a Mineral Guard Technology to retain the essential minerals of water. Ultrafiltration makes the water free from bacterial and viral contamination. The Active Copper Technology imparts the goodness of copper to the water. To ensure that the water is as pure as boiled water, the product offers a UV e-boiling technology.

The cleaner is suitable for TDS up to 200 and is the best fit for municipal water only. The brand also offers free installation of the model.


Faber FWP Galaxy PRO Reverse Osmosis Water Purifier 7L, Black, ro+mat

Product details:

The Faber FWP Galaxy PRO Reverse Osmosis Water Purifier 7L, Black, ro+mat is a fashionable and innovative water filtering solution. When we say clever, we’re referring to the Smart Energy Saving Mode, which automatically turns off the water tank once it’s complete. The device has a 6-stage water purification system and a 7-liter water storage capacity. The water storage tank consists of ABS food-grade plastic. In addition, the company provides free water purifier installation.


Kent Ultra Storage 7 Ltr, UV and UF Water Purifier

Product details:

The made-in-India UV water purifier, Kent Ultra Storage 7 Litre UV and UF, is an excellent buy for a small family. It provides an 8-liter water storage tank and a capacity for purification at 60 liters per hour. The cleaner offers multiple-step cleansing beginning with UV filtration followed by the UF to remove the harmful bacteria and viruses altogether. This product is suitable for tap water and municipal water supplies.


Mi Smart Water Purifier RO+UV, 7L, with App Connectivity and DIY Filter Replacement (White)

Product details:

The Mi Smart Water Purifier RO+UV, 7L, with App Connectivity and DIY Filter Replacement (White), is India’s new age of UV water purification systems. It provides a Penta-step water purifying process and offers real-time TDS monitoring. The product provides a water storage capacity of 7 liters. 


Blue Star Excella 6 L RO + UV + UF Water Purifier, Black, EX5BLAM01

Product details:

The Blue Star Excella 6 L RO + UV + UF Water Purifier, Black, EX5BLAM01, is a water purifier with UV, UF, and RO technology that provides triple-layer protection. This product has a purifying capability of 285 liters per day and a storage capacity of 6 liters. Copper-impregnated activated carbon eliminates odors, odor, and volatile organic compounds from water, and it also has antibacterial properties. 

Blue Star Excella 6 L RO + UV Water Purifier, Black, EX4BLAM02

Rk Aquafresh India Az Series K200 Transparent with Active Copper Filter Technology 12 Ltrs{Ro+Uv+Uf+Active Copper+Tds Adjuster} Ro Water Purifier

Product details:

The RO and UV technology are combined in the Rk Aquafresh India Az Series K200 Transparent with Active Copper Filter Technology Ro Water Purifier. It contains an active copper filter that improves the quality of the water and makes it safer to drink. This device has a 12-liter storage capacity.

R.k. Aqua Fresh India Swift 12ltrs 14Stage Purification
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