Features:

• Cool FlowValve reduces heat, moisture and fogging
• M shaped nose clip for a comfortable fit
• No tangle straps
• N95
• Easy breathability

Editor Reviews:

Product Description:
Uniquely designed to help provide comfortable, reliable worker protection. Ideally suited for work settings that involve heat, humidity or long periods of wear. Workplace applications include grinding, sanding, sweeping, bagging and other dusty/hot operations. Features the 3M Cool Flow Exhalation Valve and adjustable M-noseclip to help provide a custom fit and secure seal.

Rating : - Dust Mask
I have used the 8511's for many years they are well priced and good quality, the do not fog up my glasses because of the built in air escape valve and Amazon shipped it quickly,