3M Rugged Comfort Exhalation Valve 6583 for the 3M Rugged Comfort Respirator is designed with harsh, dirty environments in mind. This valve offers comfort, durability and stability with a firm,...
3M Cool Flow Exhalation Valve 7583 is used with the 3M Half Facepiece Respirators 7000 Series and the 3M Centre Adapter 6864 on the 3M Full Facepiece Respirators 6000 Series.