General Industry (29 CFR 1910)

Respiratory Protection

Verified vs OSHA sources · 2026-10-05

29 CFR 1910.134

29 CFR 1910.134 requires a written respiratory protection program wherever respirators are needed to protect workers from airborne hazards or oxygen deficiency. It mandates a trained program administrator, hazard-based respirator selection, a medical evaluation before use, fit testing, training, and maintenance, because a respirator only protects if it is the right type, medically appropriate, and sealed.

#5 Most-Cited Standard356 citations in construction (NAICS 23, federal, FY2025)

29 CFR 1910.134 at a glance

What it requires: A written respiratory protection program wherever respirators are necessary or required
Who it covers: Employers whose workers must wear respirators against airborne hazards or oxygen deficiency
Key duty: Program administrator, respirator selection, medical evaluation, fit testing, training, and maintenance
Enforcement rank: Fifth on OSHA's FY2025 most-cited list
Max penalty (2026): $16,550 per serious violation; $165,514 per willful
The #1 confusion: A medical evaluation must come BEFORE fit testing and use; voluntary use still has requirements

What 29 CFR 1910.134 requires (plain English)

29 CFR 1910.134 governs respiratory protection: the last line of defense against airborne contaminants (dusts, fumes, mists, gases, vapors) and oxygen-deficient atmospheres. Respirators are required when engineering and work-practice controls cannot reduce exposures below permissible limits, or while such controls are being installed. Because a respirator only protects if it is the right type, medically appropriate, and properly sealed, the standard is built around a written program rather than the device alone.

The employer must establish a written respiratory protection program, administered by a trained program administrator, with worksite-specific procedures covering respirator selection, medical evaluation, fit testing, proper use, maintenance and care, breathing-air quality, training, and program evaluation. The sequence matters: a medical evaluation must determine that a worker can safely wear a respirator BEFORE fit testing or use, and fit testing (at least annually) must use the same make, model, style, and size the worker will actually wear.

Respirator selection is driven by the assigned protection factor (APF) and the hazard: a half-mask provides an APF of 10, a full facepiece 50, and a full-facepiece pressure-demand SCBA up to 10,000. Atmospheres that are immediately dangerous to life or health (IDLH), oxygen-deficient, or of unknown composition require an atmosphere-supplying respirator (a pressure-demand SCBA or a combination supplied-air respirator with auxiliary SCBA): an air-purifying respirator is never sufficient there. Even voluntary respirator use carries requirements, including a medical evaluation for non-filtering-facepiece respirators and the Appendix D information sheet.

The regulatory text

“In any workplace where respirators are necessary to protect the health of the employee or whenever respirators are required by the employer, the employer shall establish and implement a written respiratory protection program with worksite-specific procedures. The program shall be updated as necessary to reflect those changes in workplace conditions that affect respirator use.”

29 CFR 1910.134(c)(1)

Key facts about 29 CFR 1910.134

A written, worksite-specific respiratory protection program is required wherever respirators are necessary or employer-required.
A medical evaluation must precede fit testing AND use (1910.134(e)(1)).
Tight-fitting respirators require fit testing before initial use, on facepiece change, and at least annually.
Assigned protection factors: half mask 10, full facepiece 50, full-facepiece pressure-demand SCBA 10,000.
IDLH, oxygen-deficient, or unknown atmospheres require an SCBA (or SAR with auxiliary SCBA), never an air-purifying respirator.
A trained program administrator must oversee the program and evaluate its effectiveness.
Voluntary respirator use still requires a medical evaluation (for non-filtering-facepiece respirators) and the Appendix D information.

Scope: who 29 CFR 1910.134 applies to

Regulatory framework: General Industry (29 CFR 1910)
Citation reference: 29 CFR 1910.134
Enforcement status: In force and enforced
Jurisdiction: Federal OSHA (29 State-Plan jurisdictions may be stricter)

State-Plan states (e.g. California, Washington, Michigan) operate OSHA-approved programs that must be at least as effective as federal OSHA and frequently impose higher penalties or additional requirements. Confirm the rule as adopted in your state.

Key requirements of 29 CFR 1910.134

#	Employer obligation
1	Establish written respiratory protection program
2	Conduct medical evaluations before fit testing
3	Perform annual fit testing for tight-fitting respirators
4	Provide NIOSH-certified respirators
5	Train on proper use and limitations
6	Designate qualified program administrator

Summarized from the text of 29 CFR 1910.134. Always read the full regulation for the binding language.

Common Respiratory Protection violations

Deficiencies OSHA cites under 29 CFR 1910.134 include the ones below, in no particular order. Distinct deficiencies can be cited as separate items, and each serious item carries up to $16,550 (2026). Broader per-instance stacking exists but is a discretionary, case-by-case OSHA enforcement policy, not an automatic multiplier.

No written respiratory protection program, or no designated program administrator (1910.134(c)).
Employees using respirators without a prior medical evaluation (1910.134(e)).
No fit testing, or fit testing with a different make/model/size than the worker wears (1910.134(f)).
Improper respirator selection for the hazard or atmosphere (e.g., air-purifying respirator in an IDLH/oxygen-deficient space) (1910.134(d)).
No training on respirator use, limitations, and maintenance (1910.134(k)).

Medical evaluation comes first, and 'voluntary' use is not requirement-free

Two points trip employers up. First, the order is fixed: a worker must receive a medical evaluation confirming they can safely wear a respirator BEFORE they are fit tested or allowed to use one: putting a respirator on an unscreened worker (respirators add breathing resistance and heat stress) is a violation even if a fit test later passes. Second, employers assume that if respirator use is 'voluntary,' the standard does not apply. It still does in part: for voluntary use of anything other than a filtering facepiece, the employer must provide a medical evaluation and ensure the respirator does not itself create a hazard, and must give every voluntary user the Appendix D information sheet.

What OSHA inspectors look for

A compliance officer asks for the written program and its administrator, then checks that each respirator user had a medical evaluation before their fit test, that fit tests are current (at least annual) and match the exact make, model, and size worn, and that the respirator selected fits the hazard's assigned protection factor. Voluntary users must still get the Appendix D information. In federal construction inspections in FY2025, the paragraphs cited most were (e)(1), with 79 citations; (c)(1), with 52; and (f)(2), with 49 (HazComFast count from Labor Department enforcement data).

Example: how a violation is cited

A worker wears a half-mask against a solvent vapor but was never medically evaluated or fit tested, and the cartridge is the wrong type for the chemical. OSHA can cite 1910.134(e) for the missing medical evaluation, (f) for the missing fit test and (d) for the wrong cartridge, each as its own item.

Illustrative example, not a specific OSHA case.

Respiratory Protection compliance checklist

Use this to evaluate your compliance with 29 CFR 1910.134. Each item is a key requirement OSHA may verify during an inspection.

Establish a written respiratory protection program and designate a trained program administrator.
Select respirators appropriate to the hazard and required assigned protection factor (APF).
Provide a medical evaluation to each user BEFORE fit testing or use.
Fit test tight-fitting respirators before first use and at least annually, using the exact make/model/size worn.
Train users on why and how to use the respirator, its limitations, and how to check the seal each time.
Maintain, clean, inspect, and store respirators, and ensure breathing-air quality for atmosphere-supplying respirators.
Evaluate the program periodically and update it when workplace conditions change.

2026 penalties for 29 CFR 1910.134

Maximums set by 29 CFR 1903.15(d). 2026 amounts unchanged from 2025 (no CPI adjustment; OMB M-26-11). Not an increase. The 2025 OSHA penalty levels remain in effect for 2026; OSHA made no inflation adjustment for 2026. 29 CFR 1903.15 identifies January 15, 2025 as the effective reference for these amounts, while OSHA's public penalties page currently references penalties assessed after Jan. 15, 2026.

Violation type	Minimum	Maximum	When it applies
Serious	$1,085	$16,550	Substantial probability of death or serious physical harm.
Other-Than-Serious	$0	$16,550	Relates to safety/health but unlikely to cause death or serious harm.
Willful	$11,823	$165,514	Intentional, knowing, or voluntary disregard of the requirement.
Repeated	$4,256	$165,514	A substantially similar violation cited within the last 5 years.
Failure to Abate	None	$16,550/day	up to $16,550 per day; total capped at 30x the daily amount (FOM Ch.6)

Respiratory protection was fifth on OSHA's list of most-cited standards for FY2025. In construction, federal OSHA cited 1910.134 356 times that year (OSHA's cited-standards tool). A serious violation carries up to $16,550 and a willful or repeat violation up to $165,514, per violation, not per exposed employee.

Maximums and the willful minimum are set by 29 CFR 1903.15(d); the serious and repeated minimums are OSHA policy floors from its annual penalty adjustment memo. OSHA applies gravity-based and size, good-faith and history reductions (FOM CPL 02-00-164 Ch.6). Estimates only, not legal advice.

The business case for Respiratory Protection compliance

A respirator only protects if it is the right type, medically appropriate, and sealed to the face: otherwise workers inhale carcinogens, solvents, or oxygen-deficient air while believing they are safe. Respiratory protection was fifth on OSHA's list of most-cited standards for FY2025, and the diseases it prevents, such as silicosis and chemical pneumonitis, are often irreversible.

Free compliance tools for 29 CFR 1910.134

Respirator Fit-Test Method Selector Respiratory Protection Program Builder PPE Selector

Respiratory Protection penalties by state

Penalties and enforcement vary by state. State-Plan states may impose higher penalties and additional requirements beyond federal 29 CFR 1910.134.

Alabama Arkansas Colorado Connecticut Delaware District of Columbia

View all 50 states + DC →

Frequently asked questions about 29 CFR 1910.134

When is a written respiratory protection program required?

Under 1910.134(c)(1), a written, worksite-specific program is required in any workplace where respirators are necessary to protect employee health, or whenever the employer requires respirator use. The program must be administered by a trained program administrator and cover selection, medical evaluation, fit testing, use, maintenance, training, and program evaluation, and must be updated as workplace conditions change.

Does a medical evaluation have to come before fit testing?

Yes. Under 1910.134(e)(1), a medical evaluation must determine an employee's ability to use a respirator before the employee is fit tested or required to use the respirator in the workplace. Because respirators impose breathing resistance and can add heat stress, screening first protects workers with cardiac or pulmonary conditions. Allowing respirator use before medical clearance is a violation even if a later fit test passes.

How often is respirator fit testing required?

For tight-fitting respirators, fit testing is required before initial use, whenever a different facepiece (size, style, model, or make) is used, when facial changes could affect the seal, and at least annually thereafter (1910.134(f)(2)). The fit test must use the same make, model, style, and size of respirator the employee will actually wear.

What respirator is required for an IDLH atmosphere?

Only an atmosphere-supplying respirator. For atmospheres that are immediately dangerous to life or health (IDLH), oxygen-deficient, or of unknown composition, 1910.134(d)(2) requires a full-facepiece pressure-demand self-contained breathing apparatus (SCBA) rated for at least 30 minutes, or a combination supplied-air respirator with an auxiliary self-contained air supply. An air-purifying respirator (cartridge or filter) is never sufficient because it cannot add oxygen or protect against an unknown or overwhelming contaminant.

Does OSHA regulate voluntary respirator use?

Partly, yes. Even when respirator use is voluntary (not required by a hazard or the employer), 1910.134(c)(2) requires the employer to ensure the respirator does not itself create a hazard and to provide each voluntary user with the information in Appendix D. For voluntary use of anything other than a filtering facepiece, the employer must also provide a medical evaluation and the applicable maintenance and storage elements of the program.

Regulatory history of 29 CFR 1910.134

OSHA substantially revised the respiratory protection standard in 1998 (63 FR 1152), replacing the 1971 version and consolidating fit-testing, medical-evaluation, and program requirements into 1910.134. Assigned protection factors were added to the standard in a 2006 rulemaking. Construction adopts the same requirements through 29 CFR 1926.103.

Related glossary terms

Key terms that appear in 29 CFR 1910.134, each with a full plain-English explainer.

Respiratory Protection Program Respirator Fit Test Assigned Protection Factor (APF)Filtering Facepiece Respirator (N95)Self-Contained Breathing Apparatus (SCBA)IDLH

Related guides & articles

Personal Protective Equipment (PPE) Construction Guide

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Primary sources

OSHA figures on this page are imported from HazComFast's verified regulatory module (verified 2026-10-05 against eCFR, OSHA.gov, and the Federal Register).

This page is an educational summary, not legal advice. OSHA standards and penalty amounts change; confirm requirements against the current regulation and your applicable State-Plan before acting.

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