Twenty-five questions for anyone who wears a respirator or runs a program for people who do — the standard federal OSHA cited fifth most often in fiscal year 2025. They cover the hierarchy that puts respirators last, the hazard evaluation and what happens when you cannot estimate an exposure, IDLH and oxygen deficiency, the two respirator families, NIOSH filter classes and cartridge change schedules, Table 1 and the maximum use concentration, the nine program elements, medical evaluation and fit testing in the right order, the facial hair rule as it is actually written, and Grade D breathing air. Every explanation quotes the paragraph or the table note it comes from so you can read the rule yourself.
25 questions about 20 min
Question 1 of 25
Your score
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Frequently asked questions
No. Nothing is issued for taking this test — no card and no document of any kind. OSHA does not run a respiratory protection examination. This test is also not a fit test: fit testing is a physical procedure performed on your face with your respirator under an OSHA-accepted protocol from Appendix A, and 1910.134(f)(2) requires it before initial use, on any change of facepiece, and at least annually.
The rule is narrower than the version people repeat. 1910.134(g)(1)(i)(A) prohibits tight-fitting facepieces where facial hair comes between the sealing surface of the facepiece and the face, or interferes with valve function. Hair entirely outside the sealing surface does not violate it. Where the seal line cannot be shaved, the answer is a loose-fitting facepiece or hooded powered respirator, which has no sealing surface and needs no fit test.
By default it is 25. Note 4 to Table 1 requires evidence provided by the respirator manufacturer that testing demonstrates performance at a level of protection of 1,000 or greater to receive an APF of 1,000, and states that absent such testing, all other PAPRs and SARs with helmets or hoods are treated as loose-fitting facepiece respirators and receive an APF of 25. A factor of forty rides on that documentation.
Yes. 29 CFR 1926.103 adopts 1910.134 for construction work, so the written program, medical evaluation, fit testing and training are identical. What differs is the standards that decide when a respirator is needed — exposure limits in 1926.55 rather than 1910.1000, and 1926.1153, 1926.62 and 1926.1101 for silica, lead and asbestos. Everything here is written under federal OSHA; a State Plan may be stricter.
It depends on why they are worn. Where they are required, yes, in full. Where use is voluntary, 1910.134(c)(2)(i) still requires the appendix D information and (c)(2)(ii) still requires the program elements for medical ability and for cleaning, storage and maintenance — with one exception at the end of (c)(2)(ii): employers need not include in a written program those employees whose only use of respirators is the voluntary use of filtering facepieces. A voluntarily worn elastomeric half mask is not covered by that exception.
One point per question and a percentage at the end, with the explanation shown for every question you missed. The 70% is a common classroom threshold, not an official pass mark — the value is in reading the explanations and going back to the paragraph they cite.