FDA Approved 3-Layer Medical Grade Face Mask With Elastic Ear Loops (Box of 50) n14 #10 x 2-1/2" Hex Washer

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FDA Approved 3-Layer Medical Grade Face Mask With Elastic Ear Loops (Box of 50) n14 #10 x 2-1/2" Hex WasherFeatures: Premium 3 layer construction provides excellent barrier against particles and other contaminating agents Heavy duty non woven filter layer (25g BFE99) combines high filtration efficiency with excellent air permeability Wrap around 3D design with adjustable nose bridge fits most facial contours with ease Durable elastic ear loop design eliminates pressure to the ears and makes installing removing very simple One Size Fits Most Suitable for