dust masks and respiratory masks for non-medical purposes, used for the prevention of accident or injury caused by inhalation of dust or pollution, and structural parts for the masks, namely, exchangeable mask covers, straps and replacement straps, ear loops and replacement ear loops, padding and replacement padding, nose bridges, replacement non-medical respirator mask filters, and replacement structural parts

'accid':16 'bridg':51 'caus':19 'cover':35 'dust':1,23 'ear':40,44 'exchang':33 'filter':58 'inhal':21 'injuri':18 'loop':41,45 'mask':2,5,31,34,57 'medic':9,55 'name':32 'non':8,54 'non-med':7,53 'nose':50 'pad':46,49 'part':28,62 'pollut':25 'prevent':14 'purpos':10 'replac':38,43,48,52,60 'respir':56 'respiratori':4 'strap':36,39 'structur':27,61 'use':11

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