The prototype of the air filter is a respiratory protective device for people to use for protection. According to records, as early as in first Century in Rome, people in the purification of mercury with coarse linen made of masks for protection. After this long time, the air filter has made progre

Recently, the National Standards Committee approved the release of the new air purifier national standards, a clear evaluation of the basic technical indicators and air purifier air purifier products logo and label, the new standard will be formally implemented in March 1, 2016. The new standard is

July 16th net water purifier millet official release, which is also the companys first net water purifier products, the price is also very close to the people, and therefore attract a lot of attention of the user. We know that the filter element of the water purifier is to be replaced frequently, t