â–¶ Cup style N95 respirator 3M™ Cool Flow™ Exhalation Valve helps reduce heat build-up inside the respirator â–¶ NIOSH approved for at least 95 percent filtration efficiency against certain non-oil based particles â–¶ Braided headbands two-strap design with dual point attachment helps provide a secure seal â–¶ M-Noseclip adjusts easily for fewer pressure points and greater comfort. â–¶ Advanced electrostatic media is designed for ease of breathing â–¶ Designed to increase comfort and wearability