3M Particle masks AuraTM 9310+, FFP1 NR D, EN 149,2001+A1,2009, 20 unit(s)3M Particle masks AuraTM 9310+, FFP1 NR D, EN 149,2001+A1,2009 Acc. to EN 149: 2001 + A1: 2009. Comfortable to wear thanks to soft material, low weight and flat design; does not impede speech Integrated nose bridge with perspiration absorbent padding Can be folded flat for easy carrying, individually packed Compatible with glasses and eye protection Cool Flow exhalation valves reduce breathing resistance and prevent build up of heat under the mask