This head harness, which holds the facepiece against the face, is an approved 3M replacement harness designed for 3M Full Facepieces 6000 Series. The 3M Head Harness can extend respiratory equipment service life and potentially result in respiratory equipment cost savings.

The head harness is compatible with the following 3M Full Facepieces: 6700, 6800, and 6900 (07138, 07139, 07140 AAD).