RO vs UV vs UF vs MF – Difference Between Water Purifiers!

Are you planning to buy a new water purifier for your home, but confused with the different technologies available in India?

Well, you’re not alone.

There are many people who don’t understand the different water purification technologies and what type of water purifier to choose for their specific needs.

So, in this article, we’ll be explaining you the difference between RO (Reverse Osmosis Purifier), UV (Ultraviolet Rays Purifier), UF (Ultrafiltration Purifier), and MF (Micro Filtration Purifier).

Water Purification Filters - RO, UV, UF, MF
Different Water Purification Technologies Explained

Understanding RO vs UV vs UF vs MF Water Purifiers

Let us know each technology in detail so that we can get an idea on what type of water purifier should we pick based our requirements and local conditions (TDS levels).

RO Water Purifier Technology

The Reverse Osmosis technology filters remove TDS (Total Dissolved Solids) present in the water and provide you with pure drinking water.

The RO filter also removes all the viruses and germs in the water, but it requires a lot of water.

Say for example, you get 1 liter of pure water if you input 3 liters of tap water (impure).

RO water purifiers have a little bad name that they can’t convert the saline water to fresh water and some non-branded RO purifiers cannot retain the natural minerals in the water.

UV Water Purifier Technology

These Ultraviolet purifiers work with normal tap pressure and little electricity unlike the RO purifier which require a lot of electricity and won’t use the tap pressure.

The UV filters are able to eradicate all the germs, bacteria and viruses in the water. But, the dead bacteria remains in the water.

These purifiers are cost-effective and are also reliable.

One good thing about these UV water purifiers is that they do not change the taste or color of the water as they are chemical free.

Another merit is that they are compact and has less maintenance.

UF Water Purifier Technology

The Ultrafiltration system works without the need of electric power and can kill as well as remove all the viruses, bacteria and other microorganisms present in the water.

They work with regular pipe water pressure and hence need no electricity.

Unlike the UV purifiers, the UF water purifiers remove even the dead bacteria and germs from the water.

The only downside of the UF filters is that they won’t be able to remove the dissolved solids in the water.

So, you can use them only if the TDS levels in your water are less. Else, you should go for Reverse Osmosis water purifiers at least.

MF Water Purifier Technology

The Micro Filtration system also doesn’t require electricity and works with normal tap water pressure.

It removes all the suspended and visible impurities like mud, dirt, sand, rust etc…from the water.

The MF purifiers cannot remove dissolved salts or harmful metals from the water and hence you’ll need a RO purifier if your TDS levels are more..

Well, here is a detailed summary of all the water purifier technologies that we’ve discussed above.

RO vs UV vs UF vs MF Water Purifier Comparison

RO Water PurifiersUV Water PurifiersUF Water PurifiersMF Water Purifiers
Requires electricity to workReq. electricityDoes not req. Electricity to workDoes not req. electricity
Filters out all the bacteria & viruses from the waterKills bacteria & viruses but their dead bodies remain in the waterFilters out all the bacteria & virusesFilters out only bacteria
Req. more electricity to boost tap water pressureWorks with normal tap water pressureWorks with normal tap water pressureWorks with normal tap water pressure
Removes dissolved salts & harmful metalsCannot remove dissolved salts or harmful metalsCannot remove dissolved salts or harmful metalsCannot remove dissolved salts or harmful metals
Filters out all the suspended & visible impurities like sand, dirt, mud, rust etc…No filteringYes, filters allYes, Filters all
Membrane size: 0.0001 micronNo membraneMembrane size: 0.01 micronMembrane size: 0.1 micron
RO purifiers come with pre-filtration system to work with dirty waterIt req. clear water to workWorks with dirty turbid waterWorks with dirty turbid water
90% TDS reduction0% TDS reduction0% TDS reduction0% TDS reduction
Water wastage is highNo water wastageNo water wastageNo water wastage
Maintenance is highLess maintenanceLess maintenanceLess maintenance

Conclusion: Which Water Purifiers are the Best?

Well, the answer is clear. The RO water purifier technology is the best of all types.

Although, they waste a lot of water and require more electricity and maintenance, the purity of the water is a lot better when compared with other types like UV, UF or MF filters.

The other purifiers are not capable of removing heavy metals and cannot work with water with high TDS levels.

So, which water purifier to choose from?

Well, a combination of RO + UV + UF along with TDS controller or Mineralizer is the best water purifier for Indian homes.

These purifiers use multi-stage filtration using 2 to 4 pre-filters like pre-sediment filter, sediment filter, pre carbon filter, active carbon filter etc… to make the water as pure as possible to drink.

Hope you found this detailed article on difference between RO, UV, UF and MF water purifiers, helpful.

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