Are you confused about which filter is best for you and what to select RO Vs UV Vs UF?

First, check the TDS level of your drinking water, and if TDS >500 go for RO purifier which any doubt. And if TDS < 300 you will not need an RO purifier at all. In this case for killing bacteria and germ go for UV and UF

RO Vs UV Vs Uf Purifiers – Comparison Table :

Here is the comparison between RO vs UV vs Uf purifier with some imprtant parameters.

Sr NoParameterROUVUF
1.Size Of Membrane0.0001 MicronNo Membrane0.01 Micron
2. TDS Control90%Does Not Removes TDSDoes Not Removes TDS
3.Filter Filter out Bacteria, virus and visble ImpuritiesKill Bacteria, virus and filter out ImpuritiesFilter out Bacteria, virus and visble Impurities
4.Remove Salt and Metal YesNONO
5.Electricity RequiredYesYesNO
6.Water Pressure RequiredHighNormalNormal
Function of ro uv uf

RO Vs UV Vs Uf Purifier | Difference In Membrane Size:

Only RO and UF purifiers use membrane filtration technology and UV purifiers work on ultraviolet radiation technology.

The difference between RO and UF Membranes is the size of the holes they have. RO purifier membranes have very small holes of 0.0001 microns so when the water comes out through this small hole it is considered as the most filter water. UF purifier membrane has a hole of 0.01 micron which is bigger than RO membrane so UF water purifier can not remove TDS of water.

RO Vs UV Vs Uf Filters | TDS Control:

RO purifiers filter out everything from the water so they provide the best TDS control results up to 90%.

UV and UF Purifiers can only remove visible impurities, bacteria, and viruses and hence it cannot control the TDS level of water.

RO Vs UV Vs Uf Filters | What It Can Filter Out?

RO purifier can remove metal, salt, minerals, impurities, bacteria, viruses, and everything from the water giving pure plain water.

Whereas UF and UV purifiers can only remove visible impurities, bacteria and, viruses and can not remove hard metals, salt, and minerals from the water.

RO Vs UV Vs Uf Purifiers | Electricity Requirement

Both RO and UV purifiers require an electricity supply to perform filtration whereas UF purifiers do not need any electric supply to perform their operation. If you have an electricity shortage problem and the TDS level of the water purifier is not greater than 500 ppm then UF purifiers are for you.

RO Vs UV Vs Uf Purifier| Which One You Should Select?

Selecting a purifier is really a tough job as it has a direct impact on our health. There are lots of purifiers with different filtration techniques you can easily get confused with.

Here is the table showing what filteration techniques you will need according to TDS of your water.

Sr NoTDS LevelBacteria and Virus FilterationMuddy Water FiltrationFilter Required
1TDS > 500YesYesRO
2TDS > 300YesYesRO + TDS Control
5TDS < 300YesNoUV
6TDS < 300YesYesUV + UF

If you are yet confused to figure out the fiter requirements you can check the FAQs.

Who Should Use RO Purifier?

RO Purifies gives very high-level filtration that gives the water of TDS level 10 -20 ppm max.

If you are drinking hard water that has a very high TDS level (>500ppm) then you must have to use an RO purifier.

Who Should Use UV Purifier?

In UV purifiers, UV rays are used to kill bacteria and germs present in water. So this filter only Kill bacteria virus and can remove impurities.

A UV filter can not remove hard minerals and salt from the water.

If your water comes from a municipal water source that is already filtered and has a TDS of 200-300 ppm you will not need RO but you can use UV to be safe from bacteria.

Who Should Use UF Purifier?

UF purifiers also use the membrane to filter the water but here the hole of the membrane is only 0.01 micron that can not remove hard minerals, salt from water.

The UF filter is best if your drinking water has a TDS of 200-300 ppm and you want the filter to kill the bacteria and viruses.

What is TDS Controller in Purifier?

There are two filters used here with separate water paths. One goes to RO filter and another to UV, UF, or test development filter.

Water from both the filters get mixed together in the end. So basically you are getting filtration of UV Or UF Purifier.

What is RO+UV+UF filteration?

RO purifier comes with UF or MF Pre-filter to remove extra sediment and to increase the life of RO purifier. So you can go for RO+UV or RO+MF any.
Once the water comes out of the RO filter it is most filtered water. The addition of another filter after RO is basically not needed.

How To Measure TDS of Water?

You will need a TDS meter that you can borrow or buy online. Measuring a TDS of water is the same as measuring human body temperature with a thermometer.

Open the tap of the meter
Take your drinking water in a glass.
Dip the meter inside the water for 20 seconds.
Check the TDS measurements on the display.