Experimental study on effect of relative humidity on purification effect of air purifiers

Bai Li, Ni Shenyang, Chen Wanyue, He Zijian and Li Shuang

2018.12.20

Carries out an experimental study on four air purifiers, analyses the field purification efficiency, clean air delivery rate, effective purification efficiency and purification energy efficiency of the air purifiers at different relative humidity, as well as the natural attenuation law and purification attenuation law of PM2.5. The results show that when the relative humidity ranges from 35% to 60%, the field purification efficiency of the filter type air purifier increases with the increase of relative humidity, but that of the electrostatic precipitator air purifier decreases with the increase of relative humidity. For the filter type air purifier, the clean air delivery rate and effective purification efficiency increase with the increase of relative humidity. The natural attenuation rate of PM2.5 increases with the increase of relative humidity. The PM2.5 purification attenuation rate of the filter type air purifier increases with the increase of relative humidity, and that of the electrostatic precipitator air purifier gradually slows down with the increase of relative humidity.