Air purifiers are usually equipped with multiple layers of filters inside, which filter out particles of different sizes through different layers of filters. At the same time, the use of adsorbents to adsorb harmful gases, electrochemical principles to decompose harmful substances, ultraviolet sterilization, and other methods can comprehensively improve the air purification effect. Different filters of household air purifiers have different filtering effects on different types of pollutants. For example, HEPA filters have better filtering effects on particulate matter, while activated carbon filters have better adsorption effects on harmful gases.

Home air purifiers can remove decoration odors, board odors, etc., ensuring that people live in a fresh and odorless environment. Removing particles such as fly ash, dust, pollen, etc. is particularly important for people who are sensitive to the nasal cavity. By using technologies such as negative ions or UV lamps, indoor microbial contamination such as bacteria and viruses can be effectively removed. By using activated carbon filters or more advanced ASNC nano mineral adsorption systems, combined with formaldehyde decomposition systems, indoor formaldehyde can be effectively removed.