In China, especially in the developed industrial cities, air quality has become a serious problem. In order to make the indoor clean and safe air, the dust removal function of air conditioner is necessary. In addition to adding air filter to air conditioner, it is more important to add air filter Dust sensor For example, GE's dust sensor can monitor PM2.5 and PM10 dust at the same time, and use it to monitor the dust concentration in indoor and outdoor air at any time. According to the data of dust sensor test, the air conditioner can update the indoor air when necessary and control the inlet air volume of fan, so as to achieve the purpose of cleaning indoor air and saving energy and environmental protection essential.
Although with the powerful help of dust sensor, we can consciously stay away from the serious period of dust pollution, and then this is only a temporary solution but not a permanent cure. In the long run, when pollution is everywhere, we will be able to hide in the distance, so the most fundamental solution lies in environmental governance.
Dust refers to the solid particles suspended in the air. It is easy to produce a large amount of dust in industrial production, such as metallurgy, machinery, building materials, light industry, electric power and other industries. According to the size of PM2.5 and PM10, the total particulate matter can be divided into PM2.5 and PM10. Particles with aerodynamic equivalent diameter less than or equal to 2.5 m in ambient air are usually referred to as fine particles, i.e. PM2.5, which we often hear. If the diameter of PM10 is less than 10 m, the aerodynamic equivalent is equal to or less than 10 m. PM2.5 fine particles have small diameter, long suspension time in the atmosphere, long spread distance, and usually contain a large number of toxic and harmful substances, so it has a greater impact on human health.