How to choose a water purifier scientifically?

Is a water purifier actually useful? Is it useful? Is it useful? Let me tell you, useful to burst!
Professionals also say that in our current drinking water environment, water purifier is a little hero:

Reverse osmosis system design will have a certain degree of surplus, to ensure that in the emergency time is not because of the reverse osmosis system of water production or desalination rate drop, reverse osmosis system differential pressure rise and make the water supply is not enough to cause a threat to the safety of the production, but in fact it is also because of the existence of these surplus makes the hidden faults are sometimes not able to show in time, so that ultimately may be evolved into reverse osmosis membrane Heavy contamination of reverse osmosis membrane elements.

Introduction: When we talk about health, we can't help but think about the happiness of the rich and the wealth of the poor. Health is not only the key to live a long life, but also the key to live a quality life. However, in our pursuit of quality of life at the same time, drinking water safety issues gradually become the biggest threat to our health. Is it worthwhile to pay for water purification equipment, and is water purifier really useful? Let's analyse this controversial topic in modern life.

Do you have a water purifier in your house? Have you been struggling with whether to install it or not? It's not because we think it's too expensive, but we're worried that it's not worth the investment, or we're afraid of being fooled. Let's talk about this topic today and see if it's worth installing one at home or not.