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Before the Fit Test: Who Has to Medically Clear an Employee to Wear a Respirator, and What You Are Allowed to See

OSHA 1910.134(e) requires a medical evaluation before fit testing or respirator use. Learn what the questionnaire is, who reviews it, and what you may see.

Updated October 2, 2026
8 min read
By the WorkSafely safety team

You have decided that a crew member needs a half-mask respirator for sanding, spraying, or cleaning out a dusty storage room. You have the respirators on the shelf, a box of cartridges, and a plan to schedule fit testing on Friday. Then someone asks the question that stops the whole plan: has this person been cleared to wear one? Under OSHA's respiratory protection standard, 29 CFR 1910.134, the answer has to be yes before the fit test happens, and before the respirator is worn on the job. This post answers that single question: what the medical evaluation requirement in paragraph (e) actually demands, who has to do the reviewing, what you are and are not entitled to know afterward, and where small employers tend to stumble. If you want the wider picture of the written program, our post on OSHA's respiratory protection standard covers it, and the question of what changes when workers choose to wear a mask on their own is handled in the voluntary respirator use post.

Why wearing a respirator is a medical event

A respirator is not a passive piece of equipment. A tight-fitting mask adds breathing resistance, and some types add weight, heat, and a restricted field of view. An employee with a heart condition, a lung condition, or even a tendency toward panic in enclosed headgear may be affected in ways that neither the employee nor the supervisor can predict by looking. The standard treats this the way it treats any exposure to physical stress: someone qualified has to look at the person before the equipment goes on, not after something goes wrong in the middle of a shift.

Paragraph (e)(1) puts the obligation squarely on the employer. You must provide a medical evaluation to determine the employee's ability to use a respirator, before the employee is fit tested or required to use the respirator in the workplace. The obligation applies when the employee is required to wear a respirator, which is the case when exposure to a hazard is above a limit or when you have decided as a matter of program design that respirators are the control. The duty is to see that the evaluation actually happens, by the right person, before the sequence moves forward.

The three things the standard says about who and how

Paragraph (e)(2) says the evaluation must be performed by a physician or other licensed health care professional, which the standard abbreviates as PLHCP. That is the person whose license, under your state's law, allows them to perform the kind of medical evaluation the standard describes. Many small employers assume this means a physician visit with an exam, but it does not have to. The standard allows the PLHCP to use a medical questionnaire, or an initial medical examination that obtains the same information as the questionnaire. In practice most small businesses use the questionnaire route, which is mandatory content published in Appendix C of the standard. You may not rewrite it or substitute your own version, because Appendix C is what OSHA considers the minimum acceptable set of questions.

The rest of paragraph (e) deals with how the questionnaire is administered. It must be administered in a manner that ensures the employee understands its content, and the employee must be given a chance to discuss the questionnaire and examination results with the PLHCP. You cannot hand it to an employee who reads poorly in English without addressing that, and you cannot ask a supervisor to look over the answers. The point of the design is that the employee can answer truthfully about heart palpitations, seizures, claustrophobia, or past lung problems without worrying that the boss will read the answer.

The standard also addresses cost and time. The medical evaluation must be provided at no cost to the employee, and at a reasonable time and place for the employee, during normal working hours when possible. If the only way an employee can get to the clinic is by giving up personal time or paying a co-pay, the employer has not provided the evaluation.

What the PLHCP needs to know from you

A questionnaire answer alone is not enough for a professional to judge whether a person can safely wear a particular respirator in a particular job. Paragraph (e)(5) therefore requires you to give the PLHCP information about the use. The categories listed in the standard are the type and weight of the respirator to be used, the duration and frequency of use, the expected physical work effort, any additional protective clothing and equipment to be worn, and the temperature and humidity extremes the employee may encounter. The PLHCP also needs a copy of your written respiratory protection program and a copy of the standard itself.

For a small employer this is the step that most often gets skipped. The employee goes to an occupational clinic, fills out the questionnaire, and the clinic issues a clearance form saying nothing more than "cleared." A clearance that was issued without knowing the person would be wearing a full-face respirator while carrying loads in a hot attic is a clearance that does not meet the purpose of the paragraph. Send the clinic a short description of the actual job, the actual respirator model, and the actual conditions, and keep a copy of what you sent.

What comes back to you, and what does not

Paragraph (e)(6) governs the written recommendation, and it is deliberately narrow. The PLHCP's written recommendation to you must say whether the employee is medically able to use the respirator, and it must describe any limitations on respirator use related to the medical condition or to the workplace conditions. It must also say whether follow-up medical evaluations are needed, and it must state that the PLHCP has provided the employee with a copy of the recommendation. That is all. You do not receive the employee's answers to the questionnaire, a diagnosis, or a description of the medical condition behind a limitation.

This surprises owners who feel they should be able to see more. The restriction protects the employee's medical privacy and, in turn, protects you. If a worker discloses a heart condition on the questionnaire, you do not hold that information, and you therefore cannot be accused of acting on it improperly. What you do hold is an operational instruction: the person can wear the respirator, or cannot, or can only under stated limits. Your job is to follow it. If the limit is that the employee cannot wear a negative-pressure respirator but could wear a powered air-purifying one, you decide whether to issue the other type or assign different work. A dispute over a work restriction is worth discussing with employment counsel.

Follow-up examinations

Section 2 of Part A of the questionnaire contains questions one through eight, and a yes to any of them calls for a follow-up medical examination. Paragraph (e)(3) says the employer must ensure that a follow-up medical examination is provided for an employee who gives a positive response to any question among questions one through eight, or whose initial medical examination demonstrates the need for a follow-up. The follow-up examination must include any medical tests, consultations, or diagnostic procedures the PLHCP deems necessary to make a final determination.

The employer's cost responsibility extends to it. A common small-business error is to treat the questionnaire as the whole evaluation, to pay for it, and then to say that the follow-up exam is the employee's problem to arrange. It is not. If the clinic tells the employee a follow-up is required, the employer is the one who provides it, at no cost, and no respirator use or fit test proceeds until the final written recommendation arrives.

When you have to do it again

The evaluation is not once for life. Paragraph (e)(7) lists the circumstances that require reevaluation. They are: the employee reports medical signs or symptoms related to the ability to use a respirator; a PLHCP, supervisor, or program administrator informs you that the employee needs reevaluation; information from the respiratory protection program, including observations made during fit testing and program evaluation, indicates a need; and a change occurs in workplace conditions, such as physical work effort, protective clothing, or temperature, that may result in a substantial increase in the physiological burden on the employee.

The final item is the one a growing shop tends to miss. A crew that started with a light mask for occasional dust, and has since moved to a heavier respirator for longer shifts in a warmer building, may be in a different position than the one the original clearance contemplated. A simple habit helps: whenever you change the respirator model, the task, or the work environment, ask yourself whether the information you gave the PLHCP is still true. If it is not, call the clinic.

Keeping the record without keeping the secrets

The recordkeeping provisions later in the standard, paragraph (m), expect you to keep records of the medical evaluations as part of your respirator program documentation. The questionnaire itself stays with the PLHCP. What goes in your file is the date of the evaluation, the name of the clinic or provider, and the written recommendation. Because medical records in general are subject to OSHA's access-to-records rule, our exposure and medical records post is worth reading before you decide where and how long to hold them.

A sensible order of operations

For a small employer starting from nothing, the sequence is short. Decide that respirators are required and pick the models. Identify a PLHCP or occupational clinic and confirm that the clinic uses the Appendix C questionnaire or an equivalent examination. Send the clinic the program, the standard, and a plain description of the job conditions. Let the employee complete the questionnaire in private, during paid time, and speak with the clinician. Wait for the written recommendation, and arrange any follow-up examination the clinician calls for. Only then schedule fit testing and issue the respirator. At each change in model, task, or conditions, ask whether the clearance still fits.

None of this guarantees that an inspector will agree your program is adequate in every detail, and individual medical situations vary. The standard is the authority, and your PLHCP is the person who answers the medical questions. What this post can offer is the order of the steps and the reason each one exists: a respirator should never be the thing that harms the person it was issued to protect.

Related reading: Respiratory Protection Fit Testing: Hitting the 2025 Deadline Without Panic | OSHA's Respiratory Protection Standard: What Small Businesses Must Have

OSHA standards cited

Always verify current OSHA standards at osha.gov. This article reflects standards in effect at the date of publication.

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