AIR PURIFIER AND METHOD FOR DETECTING PARTICLE CONCENTRATION

摘要

Disclosed are an air purifier and a method for detecting a particle concentration. The air purifier comprises a purifying device (10, 101), a first detecting device (50, 102) and a processor (103). The purifying device (10, 101) is used for purifying the air within a predetermined range. The first detecting device (50, 102) is at a first predetermined distance from the purifying device (10, 101) and is able to acquire a pre-purification particle concentration. The processor (103) is used for calculating a post-purification particle concentration corresponding to the pre-purification particle concentration, based on the pre-purification particle concentration and a pre-stored relationship between the pre-purification particle concentration and the post-purification particle concentration.