Supplied-Air Respirator (SAR) or Airline Respirator · Half mask · Demand mode · 29 CFR 1910.134

For Supplied-Air Respirator (SAR) or Airline Respirator, facepiece is Half mask; operating mode is Demand mode; jurisdiction is 29 CFR 1910.134; assigned protection factor is 10, 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.

• Demand mode | | 10 | 50

— ecfr.gov, retrieved 2026-09-24

Where each value comes from

The value above is stated away from the sentence quoted with the answer, so the passage that states it is shown here too.

— all from 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.