Protects the visor from contaminants and scratches. It is self - adhesive, easy to apply and remove, and adheres firmly. Designed for use with the 3M ™ 7907S reusable full mask. Transparent. Quick and easy placement Increase the useful life of your equipment. The 3M ™ 7992 screen protector is transparent and self - adhesive, for use with the 3M ™ 7907S reusable full face mask. Protect your visor from contaminants and scratches with the 3M ™ 7992 screen protector, designed for use with the 3M ™ 7907S reusable full face mask. This protector incorporates an easy - to - apply and remove self - adhesive that adheres firmly.