The Ultimate Guide to Choosing the Water Purifier

Are you tired of searching which is the best RO or UV water purifier? You have landed on the right website. Here, you will have all the vital information that enables you to make informed decisions about choosing RO or UV water purifiers.

Clean water is essential for healthy health. Tap water can no longer be depended upon because of extensive contamination of water sources. We often come across multiple reports of individuals becoming unwell after drinking unfiltered tap water. As a result, having a good, if not the finest, water filter at home is a must for families. However, the market has a variety of water purifiers that employ various water filtration technologies. As a result, selecting the best water filter for your house might be difficult.

Choosing the appropriate water purifier is difficult given the abundant choices available in the market. We evaluated the most common water filtration systems, such as RO or UV water purifiers, to help you choose the best option.

How many types of water purifier are there?

Water purification processes include reverse osmosis (RO), distillation, and ultraviolet (UV). Here’s an explanation of how various water purification systems function.

Reverse osmosis (RO) – Reverse osmosis is a popular water-filtration method—reverse osmosis forces high-pressure water across a membrane. The semi-permeable membrane traps pollutants and allows clean water through.

Distillation – Distillation removes contaminants from water by boiling. Pure water evaporates into steam while cooking, leaving behind contaminants. Distillation water purifiers condense clean steam into drinking water.

UV water purifiers – UV radiation kills bacteria, viruses, parasites, and cysts in water. UV radiation kills microbes or destroys their DNA, stopping reproduction (known as inactivation).

What is RO in a water purifier?

RO purifiers use a semi-permeable membrane to filter or separate 90% of dissolved contaminants. Reverse osmosis membranes may extract up to 90% of what is dissolved in your water, including any vital minerals. So, if the TDS (Total Dissolved Solids) levels are 900 ppm (parts per million – a measure of TDS), the TDS levels after RO will be in the 90 ppm range. If the TDS is 300, after RO, it will reduce to 30, which is less desirable.

TDS levels of over 500 ppm, therefore, need an RO system.

Using a RO purifier for water with a low TDS, to begin with, often takes away minerals like calcium and magnesium, leaving water with deficient TDS levels, which may not be ideal for health. However, a downside with RO water purifiers is that they tend to waste water in quite significant amounts.

What is a UV water purifier?

UV purification or disinfection is the most outstanding choice (for low TDS water) for eradicating microorganisms such as bacteria, viruses, and cysts without destroying vital minerals from your drinking water. UV water purification is the most eco-friendly option since it adds no chemicals and wastes no water. UV therapy is particularly successful in cleaning water at the point of use for soft water treated by authorities and may have been polluted during distribution.

What are the advantages of RO water?

1. Water and food that tastes better – Many restaurants use RO-filtered water in their cooking because it removes 95-99% of total dissolved solids (TDS) and improves the water’s odor, appearance, and taste.

2. Families consume more water – A home RO system provides clean, tasty water to consume and cook with. Indeed, many households have discovered that after installing a reverse osmosis drinking water system, family members drink more water and eat fewer sodas or other sugary beverages.

What are the disadvantages of RO water?

While few would argue that reverse osmosis filtration is one of the safest and most efficient systems of water filtration today, it does have several drawbacks.

1. It wastes more water than it produces – Wasted water is one of the most significant downsides of reverse osmosis water systems. According to studies, many reverse osmosis systems squander between 3 and 20 times the amount of water they generate. This is wasteful for the environment and households, whose water bills may be much higher than they would otherwise be.

2. Removes beneficial minerals from water and lowers pH – Another downside of reverse osmosis water filtration is that the efficacy with which these systems filter water does not limit themselves to undesirable pollutants. Reverse osmosis will also remove beneficial minerals such as calcium, magnesium, potassium, and other bicarbonates and fluoride from municipal sources.

What is the difference between RO and UV?

  • RO and UV water purifiers kill harmful bacteria, but other factors must be examined before buying. The following are the primary distinctions between the two filtering systems:
  • UV filters kill water bacteria. Dead bacteria float. RO water purifiers kill bacteria and filter out their dead bodies. RO-filtered water is cleaner.
  • RO water purifiers remove salts and impurities. UV water filters can’t remove dissolved solids. Since bacteria aren’t the only pollutants, RO systems purify tap water better. Water may include heavy metals and other harmful chemicals.
  • RO purifiers have a pre-filtration technology that allows them to function with filthy or muddy water. UV filters, on the other hand, are ineffective in dirty water. To successfully eliminate the microorganisms, the water must be clean. As a result, UV filters may not be a viable solution in places where the water has a significant concentration of sediments.
  • RO water purifiers need the power to increase the pressure of the water. On the other hand, UV filters may function with standard water pressure.
  • If you ask, is UV water safe to drink? As compared to RO, UV is not safe. People choose RO due to the performance and pricing features.

What is the disadvantage of using UV light?

There is no way to turn off the UV light, because UV light is invisible, it is impossible to tell if an appliance is operating or not. You will need to contact a service provider if the purifier stops working for whatever reason. As a result, you may find yourself drinking contaminated water.

Is UV necessary with RO?

To successfully eliminate the microorganisms, the water must be clean. As a result, UV filters may not be a viable solution in places where the water has a significant concentration of sediments. RO water purifiers need the power to increase the pressure of the water. On the other hand, UV filters may function with standard water pressure.

Does UV filter reduce TDS?

UV technology is devoid of chemicals and simple to maintain. Unfortunately, it cannot destroy TDS or the germs that radiation can kill.

What is the difference between RO and UV?

The UV filter destroys all germs in the water. On the other hand, the dead bacteria stay floating in the water. An RO water purifier, on the other hand, destroys germs and filters away their dead bodies floating in the water. As a result, RO-filtered water is more hygienic.


RO water purifiers are more effective than UV water purifiers. UV water purifiers purify water, preventing water-borne illnesses.UV is not necessary with RO. In writing this post, we aim to raise your level of understanding of the fundamentals of RO and UV water filtration technologies, which you should consider before choosing a water purifier which will fulfill your demands.

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