N95 Particle Respirator 8200 Mask, Standard Size, 20/Box NIOSH approved for at least 95 percent filtration efficiency against certain non-oil based particles. Lightweight, disposable particulate respirator is an economical choice for respiratory protection. Adjustable nose clip and cushioning nose foam reduces potential for eyewear fogging. Two-strap design with four point staple attachment helps provide a secure seal. Compatible with a variety of protective eyewear and hearing protection.