The treatment of air pollution is not a day or two thing, in the pollution control is not in the ideal level of 365 days a year most of the time blue sky, we should do? This has caused me to think deeply. PM2,5 in the air can cause respiratory diseases and even lung cancer, and the consequences are very serious. After much thought, I came up with the following method. For your reference. 1, the time of outdoor activities must be good or excellent air quality (i.e. PM2,5 in the air is below 50). Because the activities in the polluted air (especially in the outdoor sports leading to deeper and faster breathing) will make us inhale more PM2, 5 in the air, although we do not feel, but over time will produce respiratory diseases (serious cases can cause cancer). 2.Buy a mask that can block PM2,5 in the air (ordinary masks can’t block PM2,5 in the air), and walk around in the air above light pollution, that is, you should put it on. 3.Buy one to two air cleaners, turn on the air cleaner when in the air above light pollution, so that the air quality reaches above excellent. 4, buy an air quality detector. Determine whether the air quality at home is above good (i.e. PM2,5 in the air is below 50). 5, such as people who like to exercise, can buy their favorite fitness equipment in their own homes to exercise. Through the above measures, I think we can minimize the harm of PM2, 5 in the air to the human body, so that we have less respiratory diseases, so that we have a healthy body to contribute to the motherland.