Mask body: Sturdy and hypoallergenic EPDM Viewfinder: 180º wide angle unsharp PMMA (plexiglass) Connector: Robust plastic with breathing and breathing valves, standard RA filter connection to EN 148-1 Weight: Approx. 500 gr Approvals: EN 136 Class 2 (CE Mark), NIOSH, AS / NZS