MASK OF DUSTPROOF, CAPABLE OF FLOWING IN FRESH AIR TO RESPIRATORY ORGANS AND BLOCKING INFLOW OF DUST OR HAZARDOUS ARTICLE THROUGH AIR SUPPLIED TO INNER SIDE OF MASK OF DUSTPROOF

摘要

PURPOSE: A mask of dustproof is provided to primarily block the hazardous article through air supply device, thereby improving the using frequency of a filter and being very economical like improving productivity.;CONSTITUTION: A mask of dustproof(100) includes a mask main body(110), a cover(120), a filter, an air supply unit(140). The mask main body has a shape to cover the mouth and nose and prepares a fixing band for fixing it in a head in both sides. The cover is opened to one side rotation into front surface of the mask main body and has one or more inlets. The filter is exchangeable by opening the cover and has a filtering function by closed attached to the mask main body when closing the cover. The air supply unit is installed according to the inner circumference of the cover and primarily blocks the hazardous gas flow into the inlet as external air is flown in. The supplied air is transmitted to a respiratory through the filter.;COPYRIGHT KIPO 2011