The raw materials of the mask are non-woven fabric, nose bridge, ear hook, filter paper and so on.

Generally speaking, two-layer disposable masks are mainly made of non-woven fabrics, nose bridge ribs and ear hanging materials, while three-layer disposable medical masks are mainly made of non-woven fabrics, nose bridge ribs, ear hanging and filter paper.

Mask is mainly a kind of sanitary product worn on the nose and mouth to filter the air entering the nose and mouth. Mainly has the function of blocking harmful gases, smells and droplets from entering and leaving the mouth and nose of the wearer, and is mainly made of gauze, paper and other materials. It is mainly suitable for the epidemic period of respiratory infectious diseases or the environment polluted by dust. Mainly divided into two types: air filter mask and air supply mask.

During your stay in novel coronavirus, you'd better choose a medical mask with a filtration efficiency of over 95%. But in fact, in areas where people are not very dense, general masks can also be protected. In addition to two-layer masks and three-layer masks, there are also activated carbon masks. The raw materials of activated carbon mask are non-woven fabric, nose bridge, ear hook, filter paper and activated carbon filter paper.

When choosing a mask, pay attention to whether the material of the mask is the same as it looks, and prevent the inner layer from being replaced by other materials. Whether the thickness is consistent with the label depends on the feeling of thickness. Whether the stitches and stitches are neat. It is best to clean it before use and dry it in the sun before use.