SALE Quick view Pyramex Disposable Dust Mask with Valve, Box of 10 Pyramex Safety - Dust Mask - Disposable Dust Mask with Valve - Valve – One way valve for easy exhalation. N95 – 95% efficient respiratory protection in non-oil areas. Proper design – Large coverage providing a comfortable fit for the user. Elastic straps... $13.99 $12.59 Add to Cart Compare