GIME Double filtered gas mask Industrial Gas Chemical Anti-Dust Respirator Mask Goggles Set Color Black 1.Material: Mask(Soft silica gel, without glue smell), filter box(activated carbon), glass(PC) 2.Made of 4 components: Mask, filter box, respiration value and elastic ribbon 3.non-toxic odorless 4.Adjustable straps 5.comfortable nose and mouse cover will fit anyone.