I have seen a lot of interest in water purifiers in 2025, especially during the coronavirus quarantine period, so I decided to help people choose the right product and write this guide. I hope that you will find this article useful and will ultimately help you make the right decision. If you are unsure whether you should make this kind of investment, here is a short explanation of why people are interested in buying a purifier.
Water is one of the most essential things to support life on this planet. But, when we are talking about this important liquid, we are specifically talking about freshwater. For humans, it also has to be clean. But, it should not be a problem for is because almost 70% of planet Earth is covered in water, right? Well, most of that is either the ocean or saltwater, leaving only 2.5% that is drinkable. That is not a lot when you consider there are more than 7 billion people living on this world.
However, as you already know, we, humans are very intelligent and have all kinds of advanced technologies. A water purifier is a great use of those advanced technologies. It gives us access to fresh and clean liquid quickly and for a small amount of money.
But, before you buy this kind of product, here are some factors that you will need to consider.
1. Tank capacity
I think this might be one of the most important factors that you will need to consider when purchasing this kind of product. How much tank capacity you need on such a device depends on how many people will be using it.
To make the right choice, you have to consider the fact that an adult male needs around 3.7 L of liquid every day while a woman requires 2.7 L. Children usually require less. With this information, now you can make the calculation and find out exactly how much liquid needs to be stored in your purifier.
For example, if you live together with just one person, you will need around 5 L of tank capacity. If you are more, you will probably need 7 L or maybe even 10 L.
2. Purifying speed
If you decide to go with a smaller tank capacity, that is not always a bad thing. Even with a 3 or 4-liter tank, the purifier could be enough for four or more people. How? Well, if the device’s purifying process is fasting up to keep up with everyone’s water drinking speed then you probably do not need more capacity.
However, the faster products are usually a little bit more expensive which might be out of your budget. Keep in mind, you could always find yourself in a situation when there is no water inside the machine. In other words, you will have to wait for the purification process which can be annoying.
In the end, you should decide which features you appreciate more. Would you rather get a larger tank or a faster machine?
3. Pricing
Obviously, for the people that are on a budget, this is a very important factor. But, if you do not care about the cost of this does advice, you should skip to the next point. For those that are on a budget, this will be very important for you.
The cost for these purifiers can range anywhere from $100-$500. There are some models that go over $500, but I think those are expensive for no apparent reason.
The best price per performance ratio is around $200 or $250. But, even those that are around $150 can be great for a family of just two or for just one person.
A great example of a product around that $250 price point is the KENT Grand Plus ZWW 9 LTR which is reviewed quite well on Vsbytes. For that price tag, I think you get a lot of features. But, make sure you check out all the other alternatives because you might something that satisfies your needs much better.
4. Purifying quality
Believe it or not, but different devices will deliver a different result. Not every machine will give you the same taste. You are probably thinking that water does not actually have any kind of taste, but it does. If you were to test 10 different machines at the same time, you will immediately notice a difference between them.
Usually, the difference in taste is directly correlated to the purifying quality of the machine. Naturally, some are equipped with much better filters than others. Sometimes, too many filters can deliver a worse taste. That is why it is best to do your research beforehand, otherwise, you might end up with purified water that you do not like.
5. Features
These types of devices are expensive for a good reason. Once you pass that $200 price point, you will notice that purifiers are equipped with dozens of different features. If you want something simpler and you do not care about features, you should probably skip this part of the guide. But, if you do care about those features, you should definitely read through this next paragraph.
What kind of features? Well, some come with the option to directly connect to your tap while others do not. So, if you do not want to fill the tank with water every single day, you should probably look for a purifier that has that direct connection with your waterworks.
There is another feature that allows for automatic shutdown. This can be useful if you want to reduce your electricity bill. So, whenever the tank is full, the device shuts down and saves power.
Some purifiers are equipped with a UV LED lamp to ensure that the water in the tank does not get contaminated which is a feature I love.
I could go on because there are tons of different features, but I think you get the point.
After reading through this guide, I think you will have a much better idea of what you want and how much you will be willing to spend on a water purifier. I am confident that you will make the right decision.
