How to buy Water Purifier Guide

What means UF Water Purifier

UF stands for Ultra-Filter. UF is a membrane similar to RO membranes but with bigger pores. UF cannot remove dissolved salts from water. The big advantage of UF water purifier is that it will work without electricity and completely remove all microorganisms from water including the smallest of viruses.

So a UF water purifier is the ideal water purifier for tap water in big cities, where you can be sure that you will always get good tap water without chemical contamination. This is because a UF water purifier is capable of removing from water even the smallest of germs, the viruses, but UF cannot take out dissolved solids from water.

Best UF water purifier in India

One good model of a UF water purifier is the KENT Maxx 7-Litres Wall Mountable/Table Top UV + UF Water Purifier with detachable storage tank available online at a price of about Rs.7000- at the time of publishing this page.

Advantages of UF Water Purifier

Disadvantage of UF Water Filter

The disadvantage of the UF water purifier is that it will not remove dissolved solids in water. Thus it is a only good for use with public supply water or well, pond, river and rain harvested waters, when you are absolutely sure that the dissolved solids (TDS) is within the limits and that it contains no toxic dissolved impurity contaminants like Arsenic, heavy metals, Nitrates, etc. If you are not sure about the dissolved solids in the water, then it is best to opt for an RO water purifier.

'LifeStraw' Miracle Straw UF Water Purifier

LifeStraw Miracle straw portable UF water purifier filter for use in any water

A Time Magazine “Invention of the Year” winner, LifeStraw is a water purifier which works exactly like a straw you use when drinking Pepsi. In the picture on the right you see children drinking dirty river water using LifeStraw. This point of use water purifier straw has hollow fibre membranes with 0.2 micron pore size which makes it an ultrafiltration or UF purifier, with larger than the usual UF water purifier pores. LifeStraw removes a minimum of 99.9% of all waterborne parasites and germs, including cysts of protozoan giardia and cryptosporidium. Being only of 0.2 micron pore size some small viruses may get through. This will not be the case with a point of use regular UF water purifier meant for the kitchen, where the pores are of .01 micron size and will not allow even the smallest of virus to get through to the purified water.

Life straw can purify upto a 1000 liters of water which is enough to last one person for a year. LifeStraw was designed by Vestergaard Frandsen of Switzerland. LifeStraw is available for retail sale in some parts of the world, but the majority of it is distributed free of charge at times of disasters all around the world by organisations like the Red Cross. Some of the awards won by Life Straw are the 2008 Saatchi & Saatchi Award for World Changing Ideas, the ‘INDEX: 2005’ International Design Award and "Best Invention of 2005" by Time Magazine.

Best way to buy Water Purifiers in India

The best way to buy Water Purifiers in India is to first look at all models of Water Purifiers available online at the leading online Retailers in India. For example on the online webpage of All Water Purifiers available in India on, you will find the full range of Indian Water Purifiers complete with their best discounted price and full specifications. This is great information, and you can decide on which model of water purifier to buy. With the model of water purifier you want to buy finalised, you can go to local shops to try and find the model of water purifier you have chosen and see if you can get at similar price of that at In most cases the price from Amazon will be cheaper, because they buy in bulk from the manufacturers direct and they sell huge volumes because they are the world's largest and most trusted online retailer. If you buy from Amazon, they will arrange to have the water purifier installed in your house, usually free of charge.

Warranty and other facilities offered through Amazon are usually better than what you can get from local agents of water purifiers.

All pages in our website

Below are links to all the pages on this website and we hope you will make full use of all the great information about Indian Water Purifiers provided here.