RO Vs UV Water Purifier
/ / RO Vs UV Water Purifier – Comparison Guide

RO Vs UV Water Purifier – Comparison Guide

For having a good body and healthy living, you need to drink clean water. Due to the extensive environmental pollution that has hampered the air, land, and even water, getting a reliable drinking water source has become difficult. 

Unluckily, there have been various instances where individuals have fallen ill because of the unfiltered tap water. So, having a high quality and best water purification system has become necessary at all homes in India.

But nowadays, you come across various types of water purifiers in the market, and they do follow different purification systems. So, choosing a good water purifier is tough, and it makes a difference in the world. 

In this article, we will compare the two of the most commonly used water purifiers – RO and UV water purifiers. Now keep in mind that there are various branded companies selling both versions of the water purification system. And the best part is that they are indeed great to use. But you would have to choose one that easily fits your requirement. Keep in mind that the safety of the water you drink is very much critical.

What Is Reverse Osmosis (RO) Water Purifier?

This is a water purification system that can move water molecules through a semi-permeable membrane. Due to this, only water molecules would be able to move to the other side of the membrane. This will leave behind the dissolved salts and other major impurities. So, it means that RO purified water is free from all kinds of harmful bacteria, and it can easily dissolve all kinds of contaminants.

How Does RO Water Purifiers Work?

The RO purification procedures contain forcing water through a semi-permeable membrane. Here it will work using proper water pressure to remove all kinds of impurities and even contaminants.

 The RO purification method is used to remove tap water with high dissolved solids (TDS). When the hardness of the water is removed, it will provide water with a sweeter taste.

What Is UV Water Purifier?

In the UV water filtering system, the ultraviolet (UV) rays can kill the harmful bacteria from the water. So, the water will get completely disinfected right from the pathogens. The UV water purifiers are best for health, and it will remove and destroy all kinds of harmful pathogens present in the water without affecting the taste.

How Does It Work?

UV water purifiers work by allowing the water to pass through the chamber that contains the UV lamp. The presence of intense light does the job by deactivating the harmful contaminants. But keep in mind that the UV rays are not that effective in lowering the TDS value.

RO Vs. UV Water Purifiers

Of course, both RO and UV water purification systems help destroy and kill all kinds of harmful bacteria present in the water. Still, there are certainly other major factors that you must take into account before making the final purchase. Based on these differences, you can have a vague idea of both of these water purifier’s advantages.

Features RO Water Purifiers UV Water Purifiers
Filtering The RO water purifier kills all the bacteria present in the water.

It will even filter out the dead bodies that are floating in the water. So, it is a more hygienic water purifier. 
The UV purifier kills all the available pathogens present in the water, but the dead bacteria would remain suspended in the water.
Dissolved Salts The water purifier can remove all kinds of dissolved salts and chemicals present in the water.

This means that the RO effectively purifies the water and even takes out the heavy metals and other harmful chemicals. 
The UV water filter can’t separate the dissolved solids from the water. 
Pre-Filtration System The RO purifiers have a built-in pre-filtration system that assists it in working with muddy and dirty water.  The UV filters won’t work with muddy water. For it to function, the water needs to be clear, and then only it can kill the bacteria.

So, this means that the UV filter won’t be a great option in areas where the water has many sediments. 
Electricity The water purifier needs a regular supply of electricity for boosting water pressure.  But the UV filters can work using normal water pressure. 
Cost Regarding the cost, the RO purifier’s price range is justifiable for the extreme protection it provides.  Compared to the RO purification system, the UV filters are not expensive. 
Water Suitability The RO system is suitable for underground water sources. The UV water purifier is best suited for municipal water supplies.
Water Wastage In the RO system, you might come across huge wastage of water.  But in the UV water filtration process, there is no wastage of water.
Purification Time The RO water purification takes time to purify the water.  The UV water filtration procedure takes less time to produce and purify the water. 
Maintenance  The RO water purifiers cost and have huge maintenance.  UV water purification has a very less maintenance cost. 
Storage The Ro system contains a huge storage tank with five to fifteen liters capacity based on the model.  The UV water purifiers don’t have their storage tank. So, you would have to fill bottles or pots of water manually each time.

Besides these features, the RO and UV water purification vary based on the location and water type found at various states in India. When you are going to choose or make a selection among the RO And UV water purification, they might be a huge difference in terms of the supplied water. 

In places like Chennai, one gets hard water, but it is less hard or seawater in Mumbai. In this case, the features of both the water purification system would be a bit different. 

RO Or UV Water Purifiers, Which Is Better For You?

Nowadays, most reputed authorities deem that municipal water is not suitable for consumption, but the ground reality is far from that. There is a lot of need for a good water purification system, especially removing impurities from the tap water and making it drinkable.

No doubt, both the UV and RO water purifiers are famous globally for their best filtration. The contaminated water source in India brings out a huge demand for a good purification system, giving a healthier output. And a matter of fact, both the UV and RO are the best and efficient systems. 

Frankly, the best way for deciding which of the water purifier among both of them is suitable for you is by doing a lab test of the water. This will easily clarify the various types of impurities present in the water and the method required for it.


The RO purification system is expensive; still, they work perfectly for the Indian water condition. But the UV water purifiers are less expensive, and they won’t use electricity. So, both of the purification systems have their cons and pros. So, ultimately, you need to check out your requirements and based on that, choose the one suitable for you.

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