The 3M Head Harness Assembly 7581, Respiratory Protection System Component, works with 3M Half Facepieces 7501, 7502, and 7503 (all sold separately). This harness is easy to install as a replacement part. This replacement part can extend the service life of respiratory protection equipment and potentially result in cost savings.

3M 52793, Mold Remediation Respirator Kit 69097, Large, 7010316002, 2 Kits EA/Case 
