NIOSH approved P95 for at least 95% filtration efficiency against certain oil and non-oil based particles Carbon filter material helps provide relief against nuisance levels of acid gases* 3M™ Cool Flow™ Exhalation Valve – proprietary one way valve for easy exhalation and cool comfort M-Noseclip adjusts easily for fewer pressure points and greater comfort Suited for work situations involving heat, humidity, or long periods of wear Braided headbands are designed to help enhance comfort and increase wearability