With the increasing attention to air quality and health awareness, air purification products are becoming more and more popular among consumers. Air purifier, also known as "air cleaner", air freshener, or purifier, refers to a product that can adsorb, decompose, or convert various air pollutants (generally including PM2.5, dust, pollen, odors, formaldehyde and other decoration pollutants, bacteria, allergens, etc.), effectively improving air cleanliness. It is mainly divided into household, commercial, industrial, and building products. The basic function of air purifiers - the ability to purify particulate matter - meets the requirements of national standards.