Powered Air-Purifying Respirator (PAPR) · Half mask · 29 CFR 1910.134

For Powered Air-Purifying Respirator (PAPR), facepiece is Half mask; jurisdiction is 29 CFR 1910.134; assigned protection factor is 50, recorded from its source on 2026-09-24.

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

Assigned protection factor

The source prints this value inside the passage below but does not name it there. The passage shows where it appears; what ties it to this record is the position on the page, not anything the passage says.

2. Powered Air-Purifying Respirator (PAPR) | | 50 | 1,000 | 4 25/1,000 | 25

— ecfr.gov, retrieved 2026-09-24

Source

• ecfr.govhttps://www.ecfr.gov/current/title-29/subtitle-B/chapter-XVII/part-1910/subpart-I/section-1910.134

Last verified against source: 2026-09-24. Due for re-check by 2028-09-23. This page as Markdown · OKF bundle · full dataset as JSON.