Amazon has the #1 selling 3M 8511PB1-A-PS Particulate N95 Respirator with Valve, 10-Pack on sale for $10.61 with free shipping
Also available: $12.86 with prime shipping.
https://smile.amazon.co
- Features proprietary cool flow valve that reduces heat build-up inside the respirator
- Cool FlowValve reduces heat, moisture, and fogging
- Designed to help provide comfortable reliable worker respiratory protection against non-oil based particles
- Two-strap design with welded point attachment helps provide a secure seal
- Protects against certain non-oil-based products
- M-shaped nose clip for a comfortable fit
- No-tangle straps for ease of use
- Allows for easy breathability