DescriptionExcellent fit over a wide range of face sizes, provided by convex shape, nose clip and twin-strap design. Durable collapse resistant inner shell. Comfortable, lightweight off-the-face design P1 Filter with 3M Cool Flow Valve for greater comfort.For mechanically generated particles including silica and asbestos e.g. grinding, sanding, crushing and sawing. Cool Flow Valve prevents heat and moisture build up, making breathing easier.The 3M Cool Flow Valve is a patented one way valve designed to reduce heat and moisture buildup within the respirator to offer comfortable protection, particularly in hot and humid conditions. 3M Disposable Respirators are available in valved or unvalved versions
