Moldex Disposable Respirators feature an exclusive Dura-Mesh shell that not only resists collapsing even in heat and humidity but also protects the filter media from dirt, saving employers money as workers use fewer masks. The respirators also incorporate a contour molded nose bridge that seals comfortably without having to clamp a metal noseband. Available in many models from N95 to P100.Moldex-Metric, Inc., Culver City, CA.