| 摘要 |
<p>A disposable dust protective mask for enabling maintenance of adhesive force in which the mask is worn, even when moving ones mouth, in which the strap is fixed to maintain tension, and for enabling easy adjustment of the length of the strap. The disposable dust protective mask includes a filter body 100 having a front filter 110, and upper and lower adhesive wings 120 and 130 foldably coupled to the front filter 110 and closely adhered to the ridge of the nose and the jaw of the wearer, first spread-guiding lines 121 and 131, formed at respective sides corresponding to the front filter 110, for guiding the upper and lower adhesive wings 120 and 130 to be spread, and second spread-guiding lines 122 and 132 for guiding the upper and lower adhesive wings 120 and 130 to be spread, and the upper and lower adhesive wings 120 and 130 being spread along the first and second spread-guiding lines 121, 131, 122, and 132 depending on movement of the wearer's lips, strap adjusting devices 300 and 300 respectively coupled to both sides of the filter body 100 and a strap 200 connected to the strap adjusting devices 300 and 300 and hung on the wearer.
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