Industrial Mask
Is an integral mask, accordinf to EN 136/2004, class 3; connector is according to EN 148-1/2000 (40x1/7").
The mask is used in environments with at least 17% oxygen in air when is necessary breathing protection, also, it is used for the face and eyes protection against the dangerous action of chemicals - irritant, aggressive noxious- gas, vapors, drops, powder.