What are the precautions for wearing a mask
1, wash your hands before wearing a mask, try to avoid contacting the inside of the mask with your hands, as far as possible to minimize the possibility of the mask being contaminated;
2, do not wear the wrong positive and negative, do not take turns to wear both sides, masks should be divided into inside and outside, up and down, disposable medical surgical masks, the outside is dark, the inside is light-colored, there is a metal bar at one end is above;
3, when wearing the mask should be folded surface completely unfolded, the mouth, nose, jaw completely wrapped, try to tighten the elastic band of the mask, press the metal bars on both sides of the nose, in order to reduce the leakage of the surrounding area, and it is best to breathe slowly;
4, when the mask is not in use, the side of the mask that touches the mouth and nose should be folded inward and placed in a clean self-sealing bag, and hands must be washed after the mask is used and thrown away;
5, mask every 2-4 hours to replace, because the use of time will be too long, then, will make the large particles are blocked in the mask surface or ultra-fine particles block the mask filter material gap, thus causing the filter efficiency and breathing resistance to rise, if the mask is broken or contaminated, should also be replaced at the first time;
6, after the mask with good, do not use your hands to touch the outside of the mask, the outside gathering bacteria and viruses.