3M - 8511 Dust Respirator with Valve - case of 80

95% efficiency against solid and liquid aerosols that do not contain oils.

• Features the patented one-way 3M Cool Flow exhalation valve that helps keep faces cool and dry.
• Adjustable M-nose clip provides a custom fit and secure seal.
• NIOSH approved N95.
• Back-order until 06/30/2020.