| 摘要 |
This mask (1) is a mask (1) used by being worn on the face, wherein a main body section (2) that covers at least part of the face is provided with a resin film (5) that is air-permeable in the thickness direction. The resin film (5) is a non-porous film having a plurality of through-holes (11) that extend in the thickness direction. The diameter of the through-holes is 0.01-30 µm and the density thereof is at least 10 holes per cm2 and no greater than 1 × 108 holes per cm2. This mask has a structure that completely differs from that of conventional masks and has high design freedom for various characteristics, including shielding, air permeability, transparency, and sound transmission, and can achieve at the same time good shielding, air permeability, transparency, and sound transmission, for example. |
