3M Half Facepiece Reusable Respirator 6300/07026(AAD), Respiratory Protection, Large (Pack of 1) This series combines comfort and convenience Comfortable soft, lightweight facepiece with easy-to-adjust head straps NIOSH approved for negative pressure air purifying and supplied air dual airline applications Can be disassembled, cleaned and reused Replaceable cartridges and filters allow reuse of facepiece for cost savings