1. Wear a mask during flu season, haze, sandy weather, sickness, and going to the hospital. In winter, the elderly with low immunity, the weak and sick, go out to wear masks as much as possible.
2. The color masks are mostly made of chemical fiber fabrics, which have poor air permeability and chemical irritating smell, which are easy to cause damage to the respiratory tract. Qualified masks are made of gauze and non-woven fabrics.
3. It is unscientific to put it out and not clean it in time. A lot of germs will accumulate after wearing a mask for 4-6 hours. The mask must be washed every day.
4. Do not wear a mask for running. Because the oxygen demand during outdoor sports is greater than usual, masks may cause poor breathing or even hypoxia in the organs, which may cause serious consequences.