(4251 by 3M) with 2 extensive activated carboninhalation valve and exhalation valve, half mask,size adjustable 4 point straps, reusable, maintenance-freeup to 10 times the TLV (threshold limit value) for particles, organic gases, vapours and dustprotection against unpleasant, organic odoursCE, EN 405:2001+ A1:2009
