What do the pm2.5:125 and pointer charts on China Weather Network mean?

The China Meteorological Administration has introduced PM2.5 into weather warnings. PM2.5 refers to particulate matter in the atmosphere with a diameter less than or equal to 2.5 microns, also known as lung particulate matter. Relevant research surveys show that almost 50% of inhaled PM2.5 is deposited in the lungs. As the concentration of PM2.5 increases, people's risk of respiratory and cardiovascular diseases will also increase accordingly. Therefore, we cannot take the haze weather lightly, but should protect ourselves and our families until the air improves. Let Tianmiao's Puweixin help you, professional protective masks imported from the United States, which can prevent both smog and germs.