NIOSH-APPROVED N95 for at least 95 percent filtration efficiency against certain non-oil-based particles and aerosols FEATURES ADVANCED FILTER MEDIA for easier breathing CUSHIONING NOSE FOAM rests on bridge of nose for comfort ADJUSTABLE NOSECLIP helps ensure a custom, secure seal STRETCHABLE STRAPS. Pre-stretch the straps prior to donning LIGHTWEIGHT DESIGN for comfort CONVENIENT, DISPOSABLE DESIGN RECOMMENDED FOR use when sanding, sawing, grinding, lawn mowing, sweeping, drywall sanding, grinding, woodworking and working with fiberglass insulating particles