Built-in carbon filter removes nuisance-level odors. Foam inner seal improves comfort. Patented nose bridge improves comfort and fit. Electrostatic filter media traps dust while maintaining low breathing resistance. Latex-free and hypoallergenic for users with sensitive skin. Applications: Relief from nontoxic household odors, latex painting with a brush or roller, sanding/sawing wood, installing fiberglass insulation. NIOSH (National Institute for Occupational Safety and Health) N95 approved.