Experimental Study on Purification of Indoor Air Particulate Matter by Household Air Conditioner

Abstract

Abstract The most common indoor air pollutants are particulate matter. However, existing indoor air purification techniques have many drawbacks. Admittedly, the low-temperature condensation method can be regarded as an effective method to remove particulate matter. In this paper, experiments are designed to examine the concentration reduction efficiency of PM2.5 and PM10 in the room by using air conditioner. The experimental results showed that household air conditioners have a purification effect on particulate matter. Under the refrigeration mode of maximum air volume, the concentration reduction efficiency of PM2.5 and PM10 reaches 60.99% and 57.47% respectively. The greater the volume of the air, the higher the concentration reduction efficiency of particulate matter. In the purification of PM2.5 and PM10 by household air conditioner, low-temperature condensation plays an important role. It can be suggested that the amount of condensed water affects the concentration reduction efficiency of PM2.5 and PM10 in the room.