Dental mask M261

1) Children size and adult size available 2) Fit comfortable on the nose 3) Soft ear-loop for a secure fit 4) Latex-free, fiber-glass free 5) Bacterial filtration efficiency ≥99% 6) Carton prints Masks are classified according to their materials and can be divided into non-woven masks, gauze masks, and activated carbon masks. The difference in materials has nothing to do with the protective filtering effect. What is really relevant is whether the structure design of the mask is reasonable, the degree of fit between the mask and the face, etc. . Non-woven mask: one type is made of pure cotton absorbent gauze or knitted fabric with various non-woven fabrics in the middle; the other is directly sewn with non-woven fabric. The filtering effect is good, and the air permeability is slightly poor. The latest product is non-woven material on the surface and back, and filter paper in the middle, so that the filtering effect of the non-woven mask is higher. Gauze masks are made from sparse cotton cloth through sewing and are mainly used in working environments that contain low concentrations of harmful gases and vapors. Only adsorbent or sorbent is installed in the filter box.