RO water purifier vs. UV water purifier: Which is better?

UV water purifiers vs RO water purifiers
Image Credits: Wikimedia Commons

There are various kinds of water purifiers available in the market these days. On one hand, RO or reverse Osmosis systems are very popular, on the other UV water purifiers are also being used widely. Due to so many varieties and options, it is difficult to get confused which to buy and which to leave. This is why we have brought you a detailed comparison between RO water purifier vs. UV water purifier. The points of comparison are given as follows for your reference:

1. Definition and meaning

RO Water purifiers

  • RO water purifiers use RO technology or reverse osmosis technology which removes impurities such as dissolved solids in water.
  • The RO purifier has a membrane which filters the dissolved solids as well as invisible particles like bacteria. This system is a water cleansing one which reduces germs in the water and thus protects the health of us and our families.
  •   RO moves the molecules from a region of higher solute concentration to lower solute concentration by using the pressure of incoming water through the membrane and leaving the impurities behind.
RO system

Image Credits: Wikimedia Commons


UV Water purifiers

  • UV water purifiers on the other hand work with UV rays where the germs and microbes can be destroyed with the help of UV or ultraviolet rays.
  • This method can be combined with other forms of filtration by reducing the chlorine content.
UV water treatment

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2. Initial costs and power consumption

One of the major considerations while deciding between an RO water purifier and a UV water purifier is that of the initial costs.

  • It is a fact that RO water purifers are tagged at higher purchasing costs as compared to UV ones. In some cases, they cost almost double and this is one point to keep in mind.
  • The power consumption of different models of UV and RO water purifiers may differ on the basis of storage capacity, model type and other such factors.

3. Maintenance cost comparison

One thing to consider when installing water purifiers is the yearly maintenance cost. The comparison is as follows:

  • RO systems require low maintenance costs however they compromise on filters and other accessories which need slightly higher maintenance costs.  One requires periodic servicing of RO purifiers to keep them running in good condition.
  • UV water purifiers have UV lamps which need to be replaced once every year for a good performance.  Moreover, cleaning also needs to be regular for best results and hence maintenance costs may be slightly higher than RO systems.

However when overall cost is concerned, RO water purifiers are more expensive to buy and maintain as compared to UV water purifiers.


Water purifier maintenance

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4. Family size

Another thing to consider when comparing RO water purifier vs. UV water purifier is the family size they can serve.  The comparison is as follows:

  • Most of the RO systems are suitable for serving a family of 1 to 5 family members.  However some of the high output water purification systems can also serve upto 15 members.
  • On the other hand, UV water purifiers are generally suitable for 1-5 people of a family.

5. Which system is better?

Now that you know the various points of comparison between the two, the question is which system is better? Well the choice may be personal and may depend upon your budget, needs and family size etc but overall, UV systems of a good brand or quality win over most RO systems.

If you are someone who is looking for UV or RO installation, you can contact Mr Right services.

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