3MR8516 / 8516 RESPIRATOR DISPOSABLE PARTICULATE 3M™ Particulate Respirator 8516, N95 The 8516 is an excellent choice for work settings that involve heat, humidity and long periods of wear. It provides comfortable, worker protection against certain non-oil based aerosol particles and relief from nuisance levels of acid gases such as sulfur dioxide, hydrogen fluoride and/or chlorine. 3M technologies include; 3M™ Cool Flow™ Exhalation Valve, advanced electret media, odor removing filter material and M-nose clip. Made in USA. Sold per box.