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Shell Shaped Dust Mask With Valve Easy Wearing Glass Fiber Free Water Resistance 1 . Descriptions FFP2V Dust Mask with Steel nose clip,two head straps.In compliance with the norm EN 149:2001+A1:2009 ,PPE III CATEGORY and Shell-shaped.Have 4-plys, PP spunbond outer layer,actived carbon fiber filtration middle layer,PP meltbrown high filteration layer(94%), PP spunbond inner layer. High level filter protection effect Low breathing resistance Soft and comfortable skill touch