| # | Regulations |
|---|---|
| 1 | - - Respiratory protection. |
| # | Letters of Interpretation |
|---|---|
| 1 | - 1910.134(g)(1)(ii) - Protection provided by powered air-purifying respirators. |
| 2 | - 1910.134(g)(1)(ii) - Hair where the mask edges meet the skin is not permitted for wearers of 30 minute positive pressure SCBA respirators. |
| 3 | - 1910.134(g)(1)(ii) - Facial hair in the face sealing area is unacceptable. |
| 4 | - 1910.134(g)(1)(ii) - Facial hair in the face sealing area is unacceptable. |