Frequent smog weather, the high PM2.5, many people consider buying air purifiers to deal with poor air conditions, but when buying air purifiers, there are some misunderstandings. So, what brand of air purifier is good? Let me introduce you to the following!
To ask what brand of air purifier is good, in fact, the choice method is the most important. The following is the method of selecting an air purifier:
      How to choose the quality of the purifier? The most important thing is of course the quality of the wind. Before I start, I want to make it clear to everyone that the purpose of buying an air purifier is to purify the air. There are many purifiers on the market that use ion generators and electronic air filters. This is a non-pure physical purification method. Under the action of high voltage electricity, "negative ions" are generated and released into the indoor air. In this way, ozone will be produced, which may be harmless to adults, but the sensitive respiratory tract of children is hard to bear. This is why the households use air purifiers and the children are uncomfortable.
      Regarding the air quality of the air purifier, there is a technically hard indicator! The end air outlet must reach 0 particles. It is not difficult to understand that if the air filtered through the filter cannot be guaranteed to be clean, the secondary pollutant Pm2.5 once again entered the air, the purification is meaningless! Then the CADR value is bigger, just bought a tall electric fan. This is also the reason why many users who have done their homework are very concerned about the wind O particles. Here we say that 0 particles refers to particles smaller than 0.3 microns, PM2.5 is particles with a diameter of 2.5 microns or less, so of course it can be physically purified! (This is often used to hang pm2.5 but not I know that pm2.5 is a large particle of the students, a small science.) I said 0 granules, it is estimated that some purifier brands have to hate teeth itching ~
      Let's talk about the CADR value. Using the CADR value, it is possible to evaluate the purification efficiency of the purifier after the air purifier has been running for a certain period of time. The current international standard is to ensure that the air is ventilated five times per hour in the applicable area. It is necessary to ensure that the indoor air reaches a certain number of air changes, that is, the fan built in the air purifier is required to have a certain amount of air. Simply put, when selecting an air purifier, first measure the wind 0 particles, then close the eyes to select the high CADR value!
      Next, let's talk about formaldehyde. I don't emphasize the harmfulness of formaldehyde. Many leukemia children are born like this. But a lot of families may not know - formaldehyde has a gradual release to the surrounding environment, the longest release period can be as long as 8-14 years, this is not when you close the door, open the window and purify through the purifier for a short time Can be removed! A very important concept here is that formaldehyde can not be removed strictly, it can only be said to be adsorption. The greater the capacity to absorb it, the better the effect. If you live in a house that has just been renovated, it is even more important to avoid inhaling harmful gases such as formaldehyde. According to my experience, when selecting an air purifier, you should take a look at its activated carbon filter. If it sinks, it will be right!
      Through the above, do you already know what brand of air purifier is good? I hope everyone has to help!
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