Part of our Pro Series, the 3M Respirator with Cool Flow Valve 8511 is designed with the pro in mind to help bring you protection and comfort. Our most popular valved disposable respirator, it is equipped with a Cool Flow valve, which helps reduce heat build-up inside the respirator, helping to enhance your comfort during longer jobs. This N95 respirator features Advanced Electrostatic Media that enhances the capture of airborne particles while allowing you to breathe easier. An adjustable M-noseclip helps provide a secure, custom seal. Whether you're hanging drywall or sanding a floor, rely on the trusted protection of the 3M Respirator with Cool Flow Valve 8511.