Summer has come. In this scorching summer, the outdoor temperature can reach 40-60℃, especially the surface temperature in the south can be fried eggs. At this temperature, if you stay outdoors for too long, it is easy to get heat stroke. Turning on the air conditioner indoors has become a daily life for people, but the air conditioner is blown for a long time, and it is easy to cause air-conditioning diseases. In order to better respond to market demand, Guangdong Shunde Delens Coating Co., Lt