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Guide · Respirators · OSHA 1910.134(e) and Appendix C

Respirator medical evaluation: what 1910.134(e) requires and who does it

Before anyone is fit tested or required to wear a respirator, the employer must have a physician or other licensed health care professional confirm the employee can safely use it. Breathing through a respirator adds work to the lungs and heart, and some conditions make that unsafe. The evaluation is usually the Appendix C questionnaire, answered in confidence and sent to the clinician, not to the boss. A yes to certain questions means a follow-up exam. The clinician sends the employer only a short written note: cleared or not, any limits, and whether to re-evaluate. There is no automatic annual repeat; it is redone when symptoms, a clinician, a supervisor or a change in the job call for it. The employer pays.

Bayshore Safety. Industrial safety and PPE supplier since 2017. · Current as of October 2026 · 29 CFR 1910.134(e), (m)(1) and Appendix C (current e-CFR)
3M Rugged Comfort Half-Facepiece Reusable Respirators3M Rugged Comfort half facepieceReusable half mask; the type and weight go on the clinician’s form

Why does OSHA require a medical evaluation? A negative-pressure respirator makes every breath harder; a full facepiece or an SCBA adds weight and heat; a hood adds claustrophobia for some people. For most workers that is tolerable. For a worker with asthma, emphysema, heart disease or uncontrolled blood pressure it can be dangerous, and the worker may not know it. The standard puts a clinician between the employee and the respirator so that the decision is medical, confidential, and made before the first shift in the mask, not after a collapse in one.

What does 1910.134(e) require?

The pieces of the rule, in the order they happen.

WhenBefore the employee is fit tested and before the employee is required to use the respirator at work. It may end when the employee no longer has to use one.
Who evaluatesA physician or other licensed health care professional, called a PLHCP: anyone whose license allows them to provide, or be delegated, the service. A nurse practitioner or physician assistant qualifies where their scope of practice allows.
HowThe Appendix C questionnaire, or an initial medical exam that collects the same information. The questionnaire is answered confidentially, during work hours or at a convenient time and place, in a way the employee understands.
Follow-up examRequired for any yes to questions 1 through 8 of Section 2 of the questionnaire, or when the initial exam shows a need. It includes whatever tests or consultations the clinician decides are necessary.
What the employer sends the clinicianThe type and weight of the respirator, how long and how often it is worn, the physical effort of the work, other PPE and clothing worn, temperature and humidity extremes, and a copy of the written program and of 1910.134 itself.
What comes backA written clearance with only three things: any limits on respirator use including whether the employee can use it at all; whether follow-up evaluations are needed; and a statement that the employee got a copy. No diagnoses go to the employer.
Cost and recordsAt no cost to the employee. Records are kept as medical records under 1910.1020: the length of employment plus 30 years.
1910.134(e)(1); (b) definition of PLHCP; (e)(2)(i) and (ii); (e)(4)(i); (e)(3)(i) and (ii); (e)(5)(i)(A) through (E) and (e)(5)(iii); (e)(6)(i)(A) through (C); (c)(4); (m)(1) and 1910.1020.

What is on the Appendix C questionnaire?

Section 1 is identification: name, age, sex, height, weight, job title, a phone number, the type of respirator (disposable filter mask or other), and whether the employee has worn one before. Section 2, questions 1 through 9, is for everyone: smoking in the last month; seizures, diabetes, allergies that affect breathing, claustrophobia, trouble smelling; lung diseases from asthma to silicosis; current breathing symptoms such as shortness of breath on a slight hill, wheezing or coughing up blood; heart problems and symptoms; medication for breathing, heart, blood pressure or seizures; past problems wearing a respirator; and whether the employee wants to talk to the clinician. Questions 10 through 15 are added for full-facepiece and SCBA users: vision, hearing, back injury and musculoskeletal limits such as climbing a ladder with 25 pounds.

Appendix C, Part A, Section 1 (questions 1 through 12) and Section 2 (questions 1 through 9 for all respirator users; 10 through 15 for full facepiece and SCBA).

The employer or supervisor must not look at the answers. The questionnaire tells the employee that directly, and the employer must tell the employee how to get it to the clinician. Part B of the questionnaire is a set of optional questions the clinician may add, including what else will be worn with the respirator and the work conditions.

Appendix C, To the employee; Part B.

Which answers require a follow-up exam?

A yes to any of questions 1 through 8 in Section 2: smoking, the listed conditions, lung problems, current breathing symptoms, heart problems, heart symptoms, the listed medications, or past trouble with a respirator. Question 9, wanting to talk to the clinician, and all of Section 1 do not by themselves require an exam. In practice a clinician may clear many yes answers with a phone call or a records review, because the follow-up has to include only what the clinician deems necessary to make a final determination.

1910.134(e)(3)(i) and (ii); Appendix C, note to the employer: answers in Section 1 and to question 9 do not require a medical examination.

What happens if the clinician says no to a negative-pressure respirator?

The standard gives the employer a second route. If the clinician finds a condition that makes a negative-pressure respirator risky, and finds that the employee can use a powered air-purifying respirator, the employer must provide a PAPR. A PAPR’s blower removes the breathing resistance that was the problem. If a later evaluation clears the employee for a negative-pressure respirator, the PAPR obligation ends.

1910.134(e)(6)(ii).

How often is the medical evaluation repeated?

  • There is no fixed interval in the standard; OSHA did not write an annual rule into 1910.134(e).
  • It must be repeated when the employee reports signs or symptoms related to the ability to use a respirator.
  • When the clinician, a supervisor or the program administrator says the employee needs to be re-evaluated.
  • When something in the program, including observations during fit testing or program evaluation, shows a need; difficulty breathing during a fit test is a specific trigger in Appendix A.
  • When workplace conditions change in a way that substantially increases the physiological burden: more physical effort, heavier protective clothing, higher temperatures.
  • The clinician’s written clearance can set its own follow-up schedule, and many programs choose a periodic re-evaluation on that basis. Substance-specific standards such as lead and chromium VI have their own medical surveillance in addition to this.
1910.134(e)(7)(i) through (iv); (e)(6)(i)(B); Appendix A, Part I.A.10.

Respirators by type, for the clinician’s form

30 items · prices live

The employer must tell the PLHCP the type and weight of the respirator. Type is as published by the manufacturer; weight is on each product page or spec sheet. Contractor Direct orders ship free.

ItemTypePart numberPrice
Gerson 1740 Disposable Respirators, N95 Particulate Respirator, Nose and Mouth
Gerson 1740 N95 Particulate Respirator, Nose and MouthRespirator type: N95 · Sold by the case
TypeN95Part1740
$181.47
Moldex Disposable Respirators, N95 Particulate Respirators
Moldex N95 Particulate RespiratorsRespirator type: N95 · Sold by the pack size
TypeN95Part2200N95
$1.35
Moldex Disposable Respirators, N95 2-Strap Particulate Respirators, Exhale Valve
Moldex N95 2-Strap Particulate Respirators, Exhale ValveRespirator type: N95 · Sold by the box
TypeN95Part2300N95
$3.52
Moldex 2400N95 Disposable Respirators, N95 Particulate Respirator, Medium
Moldex 2400N95 N95 Particulate Respirator, MediumRespirator type: N95 · Sold by the pack
TypeN95Part2400N95
$64.76
Moldex 2600N95 Disposable Respirators, HandyStrap N95 Particulate Respirator
Moldex 2600N95 HandyStrap N95 Particulate RespiratorRespirator type: N95 · Sold by the box
TypeN95Part2600N95
$38.52
Moldex 2500N95 Disposable Respirators, N95 Particulate Respirator, Two-Strap
Moldex 2500N95 N95 Particulate Respirator, Two-StrapRespirator type: N95 · Sold by the bag
TypeN95Part2500N95
$86.72

ItemTypePart numberPrice
Moldex 700 Reusable Half-Mask Facepieces
Moldex 700 Reusable Half-Mask FacepiecesRespirator type: Half facepiece
TypeHalf facepiecePart7003
$25.02
MSA Advantage 8154 200 LS Half-Mask Respirator Single
TypeHalf facepiecePart815448
$21.80
MSA Advantage 1010218 420 Series Half-Mask Respirator
TypeHalf facepiecePart10102183
$45.40
MSA Advantage 200 LS Half-Mask Respirator 2-Piece
TypeHalf facepiecePart815696
$21.80
MSA 8080 Comfo Classic Respirators
MSA 8080 Comfo Classic RespiratorsRespirator type: Half facepiece
TypeHalf facepiecePart808071
$77.50
MSA Comfo Classic Respirator Silicone
MSA Comfo Classic Respirator SiliconeRespirator type: Half facepiece
TypeHalf facepiecePart808071-M
$82.54
3M Half Facepiece Respirator Series
3M Half Facepiece Respirator SeriesRespirator type: Half facepiece
TypeHalf facepiecePart7100134948
$40.23
3M Half Facepiece Reusable Respirator Series Resist Gases
TypeHalf facepiecePart7000001932
$18.38

ItemTypePart numberPrice
3M Full Facepiece Respirator
3M Full Facepiece RespiratorRespirator type: Full facepiece
TypeFull facepiecePart7000002045
$584.23
Moldex 900 Reusable Full Face Respirator Airborne
TypeFull facepiecePart9002
$241.25
MSA Advantage 8054 Facepiece
MSA Advantage 8054 FacepieceRespirator type: Full facepiece
TypeFull facepiecePart805408
$566.40
MSA Advantage 100313 Full-Facepiece Respirator European
TypeFull facepiecePart10031309
$241.60
MSA Advantage 1002899 Full-Facepiece Respirator Rubber
TypeFull facepiecePart10028996
$241.00
MSA Advantage 10028998 Full-Facepiece Respirator
TypeFull facepiecePart10028998
$287.20
3M Full Facepiece Respirator Series
3M Full Facepiece Respirator SeriesRespirator type: Full facepiece
TypeFull facepiecePart7000002037
$204.36
MSA Gas Mask Facepiece for Ultravue
MSA Gas Mask Facepiece for UltravueRespirator type: Full facepiece
TypeFull facepiecePart457126
$751.20

ItemTypePart numberPrice
3M Versaflo PAPR & Supplied Air Respirators, TR-300N+ HIK Heavy Industry PAPR
TypePAPRPart7100153815
$2,250.00
3M PAPR & Supplied Air Respirators, Versaflo TR-302N+ PAPR Unit
3M Versaflo TR-302N+ PAPR UnitRespirator type: PAPR
TypePAPRPart7100153809
$747.52
3M TR-602N PAPR & Supplied Air Respirators, Versaflo PAPR Unit
3M TR-602N Versaflo PAPR UnitRespirator type: PAPR
TypePAPRPartTR-602N
$809.91
3M TR-600 PAPR & Supplied Air Respirators, Versaflo Heavy Industry PAPR Kit
TypePAPRPartTR-600
$2,916.16
3M TR-800 PAPR & Supplied Air Respirators, Versaflo Heavy Industry PAPR Kit
TypePAPRPartTR-800
$3,209.98
MSA 10081115 PAPR & Supplied Air Respirators, OptimAir TL PAPR Kit
TypePAPRPart10081115
$2,145.20
RPB Safety 03-801 PAPR & Supplied Air Respirators, PX5 Belt-Mounted PAPR Kit
TypePAPRPart03-801
$1,528.38
Sundstrom H06-8121 PAPR & Supplied Air Respirators, SR 500 / SR 580 Powered
TypePAPRPartH06-8121
$2,332.44

Supplied-air and SCBA units are in the respirator selector.

Questions people ask

Is a medical evaluation required for an N95?

Yes, if the employer requires the N95. It is a respirator under 1910.134 and (e)(1) applies to all required use. For voluntary use of a filtering facepiece alone, no medical evaluation is required; voluntary use of a reusable respirator does require one. (1910.134(c)(2)(ii).)

Who can do a respirator medical evaluation?

A physician or other licensed health care professional (PLHCP) whose scope of practice allows it: a physician, and in most states a nurse practitioner or physician assistant. The standard does not name specialties. (1910.134(b).)

Can it be done online?

The standard requires a questionnaire or an exam that collects the same information, administered confidentially and reviewed by a PLHCP. It does not require an in-person visit for the questionnaire; the follow-up exam, when triggered, includes whatever the clinician deems necessary. (1910.134(e)(2) and (e)(3).)

Does the medical evaluation come before the fit test?

Yes. 1910.134(e)(1) requires it before the employee is fit tested or required to use the respirator.

How often does a respirator medical evaluation have to be repeated?

When symptoms, a clinician, a supervisor or the program administrator, fit-test observations, or a substantial change in the work call for it. The standard sets no fixed interval. (1910.134(e)(7).)

Can my employer see my questionnaire?

No. Appendix C tells the employee the employer or supervisor must not look at or review the answers. The employer receives only the clinician’s written clearance: cleared or not, limits, and follow-up.

What if I fail the medical evaluation?

The clinician may clear you for a PAPR instead, and if so the employer must provide one. (1910.134(e)(6)(ii).)

Who pays for the respirator medical evaluation?

The employer, and it is done during working hours or at a time and place convenient to the employee. (1910.134(c)(4) and (e)(4)(i).)

Standards and ratings on this page are as published in the documents named and by the manufacturers named. The employer’s hazard assessment and written program decide what applies at a given workplace. Verify a rating on the product and its spec sheet before use.

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