Features These general purpose disposable N95 respirators have an exhalation valve and are used where there is high risk of exposure to airborne particles, including woodworking, demolition, and food manufacturing. N95 respirators filter at least 95% of airborne particles. They are not oil-resistant. The exhalation valve opens automatically when the wearer breaths out to allow breath to exit the mask quickly, keeping the wearer cooler and more comfortable. The valve automatically closes when the wearer inhales to ensure all air breathed in is filtered. Mask Size / Universal NIOSH Rating / N95 Mask Material / Polyester Mask Headstrap Type / Dual, Non-Adjustable Includes Eyeshield / No Mask Shape / Molded ASTM Splash Rating / Not Rated ISO Cleanroom Class / Not Rated Nosepiece Type / Metal Nose Clip Exhalation Valve / Yes Strap Material / Polyisoprene Face Seal Type / Standard Latex Content / Latex Free Color / White Eyeshield Color / None Eyeshield Material / None Eyeshield Dimensions / None Individually Packaged / No Includes / 3M(TM) Cool Flow(TM) Valve, Advanced Electrostatic Media Standards / NIOSH TC-84A-1299 Features / Advanced Electrostatic Media Mask Brand / 3M