The era background of mask nose bridge wire


       Masks are usually worn on a person’s face for three purposes. One is to prevent contaminants such as impurities or dust from entering the respiratory tract; the other is to protect others from germs or other pollutants exhaled by the mask user; and the third is to prevent the face and respiratory tract from being attacked. Attack of the cold air.

       In order to achieve the first two purposes mentioned above, the mask must maintain a close fit with the user's face. Most of the existing masks can form a close fit with the face at the cheeks and chin, but in the nose area, due to the large changes in facial contours, there are often gaps between the mask and the skin, which can not form a close fit, making inhalation and exhalation. A considerable part of the gas is not filtered by the mask body, which makes it difficult to prevent impurities or dust and other pollutants from entering the respiratory tract, or to protect other people from germs or other pollutants exhaled by the mask user.

       For this reason, someone invented a mask with a nose bridge wire. This kind of mask is made of the nose bridge wire and the mask as a whole. The nose bridge wire is a malleable long metal sheet (such as aluminum). The nose bridge wire is on the finger. Under pressure, the mask can be deformed so that the mask at the nose bridge wire is attached to the skin of the nose area and maintains the corresponding shape.