Everything to Know about How an RO + UV Water Purifier Works?

Nowadays, we can hardly imagine drinking water without purification because it is not as pristine as it used to be a few decades ago. Rapid development, industrialization, and climatic changes have deteriorated the quality of water. Hence, there is a high demand for water purifiers that can effectively treat and provide safe drinking water.

Interestingly, not only we can find different types of water purifiers designed for multiple purposes. You can also choose the right purifier depending on the quality of water you receive. Whether you use borewell water or tap water, it is advisable to check the TDS levels to determine the kind of water purifier required at your home. Hence, water purifiers are one of the significant appliances found in most households.

Everything to Know about How an RO + UV Water Purifier Works?

Everything to Know about How an RO + UV Water Purifier Works?-

However, depending on the TDS levels and other impurities, you need to choose a water purifier with RO technology or use a combination of RO + UV water purifiers.

How does RO + UV Water Purifier work?

We can find different types of water purifiers specifically designed for certain kinds of purification processes. The combination of RO + UV water purifiers or the water purifiers RO technology is one of the commonly used water purifiers in India.

Before we understand how an RO + UV water purification system works, let us go through the basic information about these purifiers.

What is RO?

RO or Reverse Osmosis processes can eliminate large particles, toxic elements, minerals, and pollutants from the tap water. Usually, RO water purifiers are beneficial for purifying water with high TDS levels.

What is UV?

UV or Ultraviolet water purifiers help in deactivating the viruses, bacteria, and other germs from the water. It adds an extra layer of purification in the process of filtration.

Now, we’ll understand how an RO + UV water purifier works?

RO + UV water purifiers are in great demand in recent times mainly because of the quality of water we receive at our home. The water, especially in India, is not very safe for drinking without the purification process. The water needs to undergo multistage purification because of the high TDS levels and other harmful pollutants that exist in the water. Hence, the combination of RO + UV purifiers is one of the popular ways to filter water in our country.

RO + UV water purification happens in three different stages:

Pre-Filtration Stage:

Water undergoes two stages of purification in this Pre-Filtration Stage.

Sediment Filter: As soon as the water enters the water purifier, the Sediment Filter will remove the small dust or sand particles from the water. The water then enters the Carbon Filter after this process.

Carbon Filter: The main function of a Carbon Filter is to remove organic impurities such as pesticides, chlorine, and organic compounds from water. It also helps to remove unpleasant smells and saltiness from the water.

RO Purification Stage:

RO purification is one of the most important stages in water purification. Reverse Osmosis helps in eliminating the high levels of total dissolved salt (TDS) from the water.

In this purification process, the water is passed through the RO membrane. The membrane has tiny pores which will stop the contaminants and allows only the water to pass through. In this way, the water is separated from the brine. Clean and safe water then moves to the next stage of the water filtration process.

RO purification is often called multistage purification because it has different levels of purification methods. It not only removes total dissolved solids but also other impurities like heavy metals, chemicals, and biological contaminants from the water.

RO will also ensure to reduce the hardness and sweeten the water.

Post-Filtration Stage (UV purification):

UV purification is an additional layer of water filtration. At this stage, ultraviolet rays will screen the water and deactivate the remaining bacteria, viruses, and other microorganisms from the water. Therefore, giving us completely safe and clean drinking water.

What are the benefits of RO + UV Water Purifier?

  1. Reduces the risk of water-borne diseases:

Unsafe drinking water can cause severe health issues and can lead to the spread of water-borne diseases. You can use RO + UV water purifiers to eliminate all the disease-causing elements from water.

2. Eliminates hardness in water:

Many people in India depend on borewell waters for drinking and domestic use. However, this water is usually hard in nature because it contains high levels of TDS. By using an RO + UV water purifier, you can reduce the TDS levels and hardness of the water.

3. Removes Heavy Metals:

RO removes all the harmful metals like arsenic, lead, sulfates, mercury, iron, and minerals like calcium and magnesium from drinking water.

4. Adds Sweetness to the Water:

Usually, hard water tastes salty or sour. Hence, many find it difficult to drink. RO technique will reduce the sourness or salty taste and sweeten the water.


RO + UV water purification is one of the most effective ways to purify water. In recent years, there is a dire need to improve the water to make it potable. It not only removes all the contaminants but also softens the water. Hence, using a multistage purification system like RO and UV is the best way to access safe and clean drinking water.

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