Blue Anatomical Face Mask With Elastic Ear Loops (Pack of 20) B1 1/4-7 x 2 3/4 Part # NAS1352C047

Part # NAS1352C047

Part # MS35276-267

58 Aluminum/Steel Dome Head Blind Rivets - Pack of 6000

Military High Collar Split Lock Washer Zinc II - Pack of 2000

Blue Anatomical Face Mask With Elastic Ear Loops (Pack of 20) B1 1/4-7 x 2 3/4 Part # NAS1352C047These masks contain two layers of 100% polypropylene, spunbond SS (2 ply), non woven fabric providing a superior penetration barrier. Features Outer shell provides high fluid resistance and inner layer supplies high density filtering Highly durable Hygienic and safe Lightweight, flexible and breathable Non toxic, non irritating One size fits most Technical Information Bacterial filtration efficiency greater than 99% for media larger than 3 microns