Face Masks w/ 3 Layered Filtering – Daily Outdoor, Socializing & Office Use, Worksites/Dustproof   Disposable（50 Pk Box) –  Protect yourself, but also to protect others, and the people you love. Effectively blocks the invasion of external particles while performing everyday activities.  The middle layer is a high density filter layer which can effectively filter non-oily particles in the air. The inside is a skin-friendly layer (direct contact skin layer). Hot air produced by human breathing is discharged directly out of the mask, which stays dry and comfortable. Adjustable steel wire is attached to the bridge of the nose to prevent escape or intrusion of infectious particles.  Single/1 per day use.  $38.79 Bulk 50 Pk.   Maple Ridge Janitorial Supplies.