Professional Multi-Purpose Valved Respirator with GasketOur Valved Respirators with Gaskets are designed to help you stay cool while providing you with a better fit. The dust masks feature a comfortable tight sealing gasket creating a secure seal on your face for all day comfort. Features: Milwaukee masks feature two soft adjustable straps and a flexible nose bridge allowing you to achieve a better fit. The respirator masks are ideal for non harmful sanding, grinding, sawing and insulation particles. Stay