| 摘要 |
<p>The present invention relates to a cover body for a mask capable of replacing a main body of a mask and a vent piece made up of a valve body, and more specifically, to a cover body for a mask wherein the vent piece is installed at a central circle which is protruded forward in a semispherical form and where a mesh type reinforcing portion made of a synthetic resin and an elliptical outer rim are connected to each other, the central hole of a replaceable main body of a mask can be coupled and assembled together, and hanging units of a band for hanging over the back of a head are integrally formed at both left and right outer rims of a cover body for a synthetic resin mask. The main body of a mask assembled together with the vent piece at the central circle of the cover body for a mask is formed by press molding a plurality of fiber layers consisting of nonwoven fabric or cotton, and a rim formed by press molding a plurality of cotton wool or gauze layers at the outer circumference of the main body of a mask is provided as a filter for preventing the inflow of external air, thereby preventing the inflow of external foreign substances or contaminated air through other regions other than the inflow of external air into the respiratory organ (nose or mouth) through the entire surface of the main body of a mask except the vent piece, and allowing the main body of a once used mask to be separated by using the vent piece together with the main body of a mask, which can be replaced and assembled for reducing the manufacturing cost and improving a dustproof effect by a valve body-type vent piece.</p> |
