| 摘要 |
PURPOSE: A multi-functional dustproof mask is provided to prevent a mask from wetting by breath from nose or mouth and to easily make breathing through sufficient filtering space. CONSTITUTION: A multi-functional dustproof mask comprises a lining made of a breathable fabric or breathable synthetic resin; an outer cover(130) made of a breathable fabric or breathable synthetic resin; at least one soft frame(140) which is positioned between the lining and the outer cover; a first protrusion(150a) which covers a gap between the bridge of the nose and the left side cheekbone; a second protrusion(150b) which covers a gap between the bridge of the nose and the right side cheekbone; and a rim closing unit(170).
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