Description PM2 5 Gas Protection Filter Respirator Dust MaskSoft and comfortable to wear according to the person s face shape designNose portion of an aluminum sheet secured to prevent slippingSpecification MaterialNeoprene Activated carbon filterColorBlack Red BlueSizeone size to fit most suitable for most peopleFunctionAnti dust face protection warm windproof 1cm 0 39Inches Note 1 Please allow 1 3cm error due to manual measurement Please make sure you do not mind before you bid 2 The colors may have different as the difference display please understand Package Included 1 X Dust Mask