The 3M 6885 is a disposable lens cover for the 3M 6000 series full face respirators. Made of crystal clear mylar, it attaches to the lens with peel off adhesive tabs on each end. Useful in protecting the relatively expensive lens from scratches or overspray from painting. When you feel that the lens cover is used up, it may be peeled off and disposed of. Putting a fresh cover on will keep your lens clean and clear. Packed and sold in an envelope of 25. Fits the 3M 6700, 6800, 6900, 6700DIN, 6800DIN and 6900DIN full face respirators.