Have you ever heard th seceond time pollution in your area,
In order to let the family to live in a healthy environment, many people put the air purifier at home, it is also an essential artifact as against the haze. However, the air purifier may cause the seceond time pollution if not make the best of use How many kind of air purifier ？ At present,there are two types of pirifier in the market. Pure physical purification filter net type air purifier and the ion type air purifier ,a lot of people use HEPA filter net type air purifier ,this type of air cleaner than the ion type a ir purifier is safe, but if not meke best use of it , there will be a hidden danger, such as th seceond time pollution caused by air. What will cause th seceond time pollution ？ one is the time to use the filter typ e air purifier is not timely to change or clean the filter, therefore, pollutants intercepted was released back into the air, the two is the use ...