These feature packed N95 masks are great for any job requiring the use of an N95 rated respirator. High quality, comfort and portability are what separate them from the rest. Use for yard work, construction or any environment where very fine particulates are in the air. 鈼?Individually wrapped, compact, fold flat design for portability 鈼?Dual extra wide straps; mask has hypoallergenic elastic for close fit 鈼?Filter: non-woven filters charged electro-statically to catch particles 鈼?4 layer filter; comfort fit adjustable nose rim provides close fit BrandYLW Face Mask Type Reusable N95 Respirator Mask Material/Fabric5 ply (100% new material) 1st ply: 50g leak proof Non-Woven Fabric 2nd ply: 40g Ethylene-Propylene Side By Side 3rd ply: 25g High Density Fliter Layer 4th ply: 25g High Density Fliter Layer 5th ply: 20g Direct Contact Skin Layer FeatureHigh BFE/PFE, Adjustable nose piece, Elastic earloop,5 ply material ColorWhite SizeFor adults: 16脳11cm Weight2.9-3.2g/pcSurgical Mask website:http://www.hdmaskcare.com/mask-respirators/surgical-mask/