This small half facepiece was designed with the wearer in mind. Its soft sealing surface, along with a uniquely designed, 3M™ Cool Flow Exhalation Valve, enhances wearer comfort and face fit. Maximized comfort in air purifying respirators means not only easy breathing filters and cartridges, but also a soft comfortable facepiece. Half facepiece air purifying respirator users can now experience state-of-the-art features that help provide unsur