(Dräger X-plore 1720 V Odour) with CoolMaxexhalation valve and activated carbon layer,individually packed, foldable design,size adjustable straps, high filter performance,soft inside fleece, nose clip, padded nose area,liquid-repellent,up to 10 times the TLV (threshold limit value)CE, EN 149:2001+ A1:200910 units per package