When wearing the mask with iron wire, we need to wear it on it. In this way, we can press the iron wire tightly along the bridge of the nose, so that the mask can closely fit the face, so as to block germs and dust. If it is not added, there will be a gap between the mask and the nose, so that air can slip in, which can not block germs. Why do people wear masks with iron wire when the weather is cold, the environmental pollution is too serious, and there are many viruses? People will habitually wear a mask, and there will be an iron wire in most masks. Should we put the iron wire on the top or below when wearing it?
In fact, the iron wire of the mask is on it. When we wear it, we should put the mask with iron wire on it, and then press the iron wire tightly along both sides of the bridge of the nose. This can make the mask closely fit the face and achieve the effect of blocking bacteria and dust.
The reason why there is a wire on the mask is that if it is not added, there will be a certain angle between the mask and our nose after wearing it, so that the bridge of the nose can not be close to the edge of the mask. In the process of use, if the air slips in through this gap, it can not play the role of blocking germs.