3M Rugged Comfort Quick Latch Half Facepiece Reusable Respirator, Medium Colad This is sustainable wax This is sustainable wax for use on textiles: spray the product durability and stability with a soft but firm seal The Quick Latch mechanism makes it easy to lower the respirator from the face without removing the head straps The proprietary 3M Cool Flow valve helps reduce heat and moisture to make breathing easier half design of the low profile facial part offers a wide field of view and compatibility with welding and grinding shields Exhalation valve cover directs exhaled breath and moisture down to reduce steaming of facial shields the silicone front seal retains its shape even in hot working conditions the half design of the low profile face piece is compatible with many welding and grinding shields Benefits of 3M Rugged Comfort Quick Latch Half Facepiece Reusable Respirator