On-Site Qualitative OSHA Respirator Fit Testing Made Easy
Workplace safety is a top priority for every responsible employer. OSHA compliance isn’t just another box to check; it’s a crucial step to keeping your team safe and your business running smoothly where respirators are required. At OnSite Health, we make this process simple, fast, and reliable through our on-site qualitative fit testing services.
OSHA and Respirator Fit Testing Overview
The Occupational Safety and Health Administration (OSHA) sets the standards for workplace safety across the country. Under OSHA standard 29 CFR 1910.134, employers must put in place a comprehensive respiratory protection program whenever workers use respirators. A cornerstone of this program is fit testing.
OnSite Health’s Fast Adjudication of MCRUFs
Before anyone uses a tight-fitting respirator, they must complete the OSHA Medical Clearance Respirator Use Form (MCRUF). This confidential questionnaire checks for any health concerns that could make respirator use unsafe. It’s a non-negotiable, foundational part of keeping your workforce healthy, as required by OSHA.
OnSite Health streamlines the process of OSHA compliance by reviewing and adjudicating MCRUFs in less than 24 hours. That means your employees get cleared to wear respirators quickly, avoiding delays in onboarding or production and minimizing business downtime. Partnering with OnSite Health means you can rely on accelerated compliance and minimal wait times.
Respirator Fit Testing: Flexible, Qualitative Solutions
Fit testing ensures that each employee’s respirator forms an effective seal and offers the intended level of protection. All employees who use tight-fitting respirators; including N95s and elastomeric facepieces, must be fit tested as part of OSHA’s requirements.
When is Fit testing mandatory?
- Before first use
- Annually
- Whenever an employee’s physical characteristics change (e.g., facial surgery, significant weight change).
Two Types of Respirator Fit Testing
Quantitative Fit Testing:
This method uses specialized instruments to measure leakage around the face seal of the respirator. Quantitative fit testing delivers precise results and is typically required for certain respirator types, such as full-face masks or those used in higher-risk environments.
Qualitative Fit Testing:
Qualitative fit testing relies on the wearer’s sense of taste, smell, or response to irritation to detect leakage around the face seal. If the wearer detects the test substance (such as a sweet or bitter mist), the respirator does not fit properly. OSHA requires this test to be repeated annually to ensure ongoing protection and correct fit.
OnSite Health: Specializing in Qualitative Fit Testing
At OnSite Health, we focus on qualitative fit testing, an OSHA-compliant method that is fast, efficient, and ideal for most workplaces, especially for disposable N95 respirators and many reusable models. Our process uses safe, proven agents to ensure every fit test meets OSHA standards.
Flexible, OSHA-Compliant Fit Testing with OnSite Health
Choose the option that fits your team’s needs:

On-Site Professional Fit Testing
Our certified professionals visit your worksite to provide comprehensive qualitative fit testing for your employees.

Train Your Own Fit Testers
We train selected staff members, certifying them as qualitative fit test administrators. This enables in-house, ongoing fit testing, and compliance.
For scheduling purposes, OnSite Health allots 15 minutes per fit test, ensuring efficient service with minimal disruption to your operations.
Take the Next Step Toward Compliance and Safety
Stay ahead of OSHA respirator fit testing requirements with OnSite Health’s expert on-site qualitative solutions. We offer lightning-fast medical clearance, flexible fit testing that’s direct or by training your own staff, and meticulous, audit-ready documentation.
Ready to make compliance easy and keep your team safe? Visit OnSite Health’s OSHA Respirator Fit Testing page to learn more and contact us today to schedule your on-site service.
Protect your people. Simplify compliance. Choose OnSite Health.
