The air purifier now faces a formidable challenge: it is air-conditioning with a purifying function. Traditionally, the most important role of air conditioning is to regulate the indoor temperature, limited to ventilation is far from purifying air. Air conditioning from a simple thermostat device, upgraded to a thermostat + air quality control of the two-in-one all-round player. So, will air conditioners replace air purifiers? Many people will have this question. The current technology has been fully able to support air conditioning not only to regulate air temperature, but also to purify the air, consumer health awareness has greatly increased, constitute the air conditioning both regulate the temperature and purify the air demand has been greatly enhanced.