How To Choose Water Purifier – The Best And Effective Way So Far

Buying a water purifier can be a tricky business. It needs to be able to effectively remove all kinds of contaminants from your tap water, such as bacteria, viruses, chemicals, heavy metals and more, in order for it to be considered a good investment that will give you long-term health benefits. With so many different types of home water purifiers available on the market today, it can be hard to know which one is best suited for your specific needs.

If you are considering buying a home water purifier or have already purchased one but need advice on selecting the most effective model for your home, then this article is for you! Here’s a complete guide about selecting the best and most effective way so far for your next purchase.

Here is How to Choose Water Purifier

Water Quality

Water quality is an important factor to consider when buying a water purifier. The Total Dissolved Solids (TDS) level, hardness, and salinity of the water in your area should be checked before investing in a water purifier. If the TDS level, hardness and salinity are high, then you should opt for an RO (Reverse Osmosis) water purifier.

RO water purifiers come with a semi-permeable membrane that helps remove even the tiniest of dissolved salt, metals and impurities from the water. This membrane works by allowing only pure water molecules to pass through it while blocking all other contaminants.

The result is clean and safe drinking water free from harmful chemicals or bacteria. RO purifiers also have additional features, such as activated carbon filters that help reduce bad odors and tastes from the water, making it more palatable for consumption.

Types of Water Purifiers

Reverse Osmosis (RO) water purifiers are one of the most popular and effective water purification technologies available in the market. These cleaners use a semi-permeable membrane to remove dissolved impurities, such as salts, heavy metals, and other contaminants from the water.

The process involves forcing the water through a membrane that is designed to allow only pure water molecules to pass through while trapping all other impurities on the other side. RO purifiers are ideal for areas with high TDS levels, as they can effectively reduce them to safe levels.

Ultraviolet (UV) water purifiers use UV light to kill bacteria and viruses in the water. This technology works by exposing contaminated water to UV radiation which destroys the DNA of microorganisms, making them unable to reproduce and spread disease.

UV purifiers are highly effective at eliminating bacteria and viruses from drinking water but do not remove any physical or chemical contaminants from it. They are also relatively inexpensive compared to other types of purifiers and require minimal maintenance. While buying water purifiers, keep in mind which will type matches your home environment.

It is a good idea to know the technologies of various purifiers. Definitely, help you to buy the right type of water filter. It is up to the budget and the quality of the water. You may select UV, RO and UF water purifiers. Here there are lots of more details of the different technologies.

RO Water Purifiers

Suppose you live in an area with a high TDS level in the water. It is better for you to use the RO system. It can remove fluoride, heavy metals, toxic impurities and Arsenic from the water. RO purifier removes some kinds of essential minerals from water. This is very important to know that the water purifiers have a TDS controller.


Contamination of water is a primary environmental concern. It can be caused by various sources, including bacteria, nitrates, dissolved pesticides, and lead. These contaminants can have serious health implications if consumed in large quantities. Testing the water for contaminants is essential to ensure it is safe for consumption.

One way to reduce the number of contaminants in drinking water is to install a RO+UV+UF filtration system. This system uses ultraviolet light to irradiate the water and penetrate the cells of bacteria and viruses, destroying their ability to reproduce.

The RO membrane then filters out these dead germs and other contaminants from the water, making it fit for consumption. This type of filtration system is an effective way to ensure that your drinking water is free from harmful contaminants.


When buying a water purifier, storage capacity is an important factor to consider. This is especially true if you live in an area that experiences frequent power cuts. A higher storage capacity ensures that the purifier can store enough water for your needs, even during a power outage.

Automated water purifiers start the purification process as soon as the water level in the purifier declines, so having a larger storage capacity will ensure that you have access to clean drinking water even when there is no electricity supply.

The size of the storage tank also affects how often you need to refill it. If you have a large family or use a lot of water, you should opt for a model with a larger storage capacity. On the other hand, if your usage is low, you can go for one with a smaller tank size. It is important to consider your needs and preferences before making your purchase decision.


Regarding water purifiers, certifications are an important factor to consider. A certification from a trusted organization such as NSF, ISI, or CE is a sign that the brand is authentic and trustworthy. It also ensures that the product meets certain safety standards and has been tested for quality assurance.

KENT is one of the leading brands in water purification systems and has received numerous certifications from some of the most respected organizations in the industry. The company has been honored with NSF, ISI, and CE certifications, renowned for their stringent testing processes.

This means that KENT products have been rigorously tested for safety and performance before being released on the market. Furthermore, these certifications guarantee that KENT products are reliable and provide clean drinking water for years.

Quick Comparison of Water Purifier Types

If you still do not fully understand then, look through this table and then go to buy a water purifier.

Water SourceBacteria LevelSuggested Water Purifier Type
Hard water is underground water taken from bore well or comes from tankers.High viruses and bacteria in water  UV+ RO
Hard water is underground water taken from bore wells or comes from tankers.Low and viruses bacteria in waterRO
Normally soft water comes from lakes, rivers, rain collecting- given by the municipalityLow and viruses bacteria in waterUV
Normally soft water comes from lakes, rivers, rain harvesting- given by the municipalitylittle bacteria and viruses in waterUV

Which Purifier to Choose for Hard Water?

The topmost fable about hard water is that it is unsafe and sound to drink. It affects internal human organs and causes a health hazard for people. The NRC (National Research Council, United States) states that solid water is used as a dietary complement for mixing magnesium and calcium in the water.

When it comes to choosing a water purifier, it is important to consider the source of water and the TDS level of input water. RO technology has become synonymous with water purifiers, but this does not mean that an RO purifier should be purchased by default. In fact, RO purification is only necessary when the water coming to your home or office has a high TDS value (generally higher than 500 ppm).

When to Choose RO-Based Water Purifiers?

One needs to use an RO water purifier when water carries dissolved solids such as lead, arsenic, fluoride, and other health problems. What is the way to know whether your water holds dissolved solids? The best system to test it is in the laboratories. One can search for the nearest laboratory on Google by “water testing laboratory in + name of city”.

When to Choose UV-Based Water Purifiers?

RO water purifiers are recommended if your TDS is greater than 500 ppm. When the TDS of the water is less than 500 ppm, then a well-designed UV water purifier will be effective in purifying the water if there is a low level of TDS.

Does Purified Water have Minerals?

One of the demerits of the RO process is that the elimination of necessary minerals is essential during the RO process. The presence of these minerals is needed for your body to remain healthy. As the pores of the RO membrane are small merely pure and clean water can pass through it. Minerals are bigger, so they can’t enter the membrane with water.

Frequently Asked Questions [FAQs]

1. Do we need to boil RO and UV water?

There is no need to boil RO water, which is a waste of energy. During the RO process, TDS is primarily reduced, and bacterial contamination is eliminated. Bacteria and viruses cannot pass through the RO membrane. Therefore, RO-purified water can be consumed directly without boiling.

2. Does the water purifier reduce TDS?

Yes, a water purifier with RO technology reduces the total dissolved solids (TDS) up to 90-95%. It also eliminates chemical contaminants like pesticides, herbicides, and other heavy metals from the water.

3. Does a water purifier remove fluoride?

Yes, a water purifier with RO technology can remove fluoride from the water. The RO membrane is capable of removing fluoride up to 95%. In the absence of an RO system, you can opt for a sediment filter and activated carbon filter that will also help reduce the water’s fluoride content.

4. How to clean a water purifier?

You can clean the storage tank of your water purifier by using mild detergent and warm water. You can also use white vinegar to clean the tank. Ensure you rinse the tank properly before filling it with fresh water.

5. Can bacteria grow in RO water?

Bacteria cannot be removed by reverse osmosis. Our knowledge has increased over the years is that bacteria can grow inside the tank and that such bacteria can be extremely harmful to some people. A RO tank can literally act as an incubator for bacteria.


Choosing a water purifier is not an easy task. You need to consider various factors such as maintenance, installation, warranty, ratings and so on. We suggest you buy a purifier online as they give time to time delivery and warranty. I hope after reading our article, you wont face any problem buying water purifier next time.


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