How to choose an air filter? July 7, 2022 No Comments An air filter is a device composed of fibrous or porous material that removes solid particles such as dust, pollen, mold and bacteria from the 阅读更多 »
What is indoor pollution? June 16, 2022 No Comments As early as 2002, the World Health Organization listed “indoor air pollution” as one of the top ten hazards to human health. A: Sources and 阅读更多 »