Mobile Respirator Fit Testing, Pulmonary Function Testing & Pre-Placement Screenings for Employers
OSHA-compliant testing delivered to your job site – no crew dispatch, no lost productivity, no documentation gaps on inspection day.
Board-Certified Occupational Medicine Physicians
93%Onsite Injury Management Rate
3,000+ Clinic Network Worldwide
40+ Years Occupational Health Experience
Clinic Hours
- Monday - Friday 7:30 AM - 4:30 PM CST
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What OSHA Requires Before a Worker Wears a Respirator
Most employers run respirator fit testing without completing the required steps first. That is a citable OSHA violation under 29 CFR 1910.134 – the Respiratory Protection Standard – and a compliance gap that surfaces immediately during FMCSA or OSHA inspections. Understanding the mandatory sequence is the starting point for any defensible program.
OSHA 29 CFR 1910.134 - The Mandatory Compliance Sequence
OSHA requires employers to follow this exact sequence before any worker wears a tight-fitting respirator. Skipping or reversing any step creates a documentable violation.
Step 1
Implement a written respiratory protection program with a designated program administrator.
Step 2
Conduct a medical evaluation using the OSHA-mandated medical questionnaire (Appendix C) reviewed by a PLHCP – Physician or Licensed Health Care Professional.
Step 3
PLHCP issues a written medical clearance letter to the employer stating the worker is medically fit to wear a respirator.
Step 4
Conduct respirator fit testing – qualitative (QLFT) for N95 and half-face disposables, quantitative (QNFT) for half-face reusables, full-face, and PAPR.
Step 5
Repeat fit testing annually and whenever the worker reports changes that could affect fit (weight change, dental work, facial scarring).
Step 6
For workers exposed to silica, asbestos, beryllium, cadmium, formaldehyde, benzene, or cotton dust – OSHA mandates pulmonary function testing (PFT/spirometry) as part of the medical surveillance program.
Critical Compliance Note
Fit testing cannot legally proceed until Step 3 is complete – the PLHCP medical clearance must be issued first. Occucare’s mobile testing program includes board-certified occupational medicine physicians who provide PLHCP oversight, issue clearance letters, and document the entire sequence. This is not a standard offering from most mobile testing vendors.
Built for Employers Managing Compliance Across Active Job Sites
This service is not for individual workers scheduling a clinic appointment. It is for the safety director, EHS manager, or HR leader at a construction, industrial, or oil and gas company who needs to process 30 to 300 workers efficiently – on their schedule, at their location, without pulling crews off the job.
General contractors managing 50-300 workers across multiple active construction sites with silica, concrete dust, or chemical exposure requiring OSHA 1910.134 compliance.
Oil and gas operators with refinery, pipeline, and downstream crews requiring annual H2S and benzene exposure medical surveillance including baseline and periodic PFTs.
Industrial manufacturers with OSHA-mandated surveillance programs for asbestos, beryllium, cadmium, or coke oven emission exposure.
Construction safety directors onboarding new crews who need pre-placement physicals, baseline PFTs, and initial fit testing processed in one mobile site visit before crew mobilization.
HR managers at large contractors processing 30-200 new hires per quarter who need a testing partner that brings the full pre-placement package to the hiring site, not a clinic location 40 minutes away.
What Compliance Failures Actually Cost Your Operation
These are not hypothetical risks. They are the citations, claims, and operational costs that safety directors at construction and industrial companies encounter when respirator and pulmonary function programs are mismanaged or incomplete.
| The Problem | The Consequence | The Cost Exposure |
| Fit testing without prior PLHCP medical clearance | Citable OSHA violation – 29 CFR 1910.134(e)(1) | $7,000 first offense · $70,000 repeat violation |
| No baseline PFT for silica-exposed construction workers | Workers’ comp liability, OSHA 300 log recordable, civil litigation exposure | Avg. $40,000-$120,000+ per occupational lung disease claim |
| Sending crews offsite for annual fit testing and PFT | Lost labor hours, travel reimbursement, crew schedule disruption | $4,800-$48,000 in labor downtime per annual testing cycle on a 60-worker crew |
| Incomplete or missing fit test certificates on inspection day | Cannot produce documentation during OSHA inspection or FMCSA audit | Citation penalties plus operational shutdown risk on active projects |
| Pre-placement testing bottleneck at fixed clinic location | New hire mobilization delayed 2-3 days waiting for clinic clearance | Project schedule slippage, overtime cost, crew availability gaps |
| No written respirator protection program on file | OSHA requires this before any respirator use – absence is a standalone violation | Up to $7,000 per citation – plus invalidates all fit testing records |
What Occucare's Mobile Testing Unit Delivers
One mobile unit. Three integrated services. Complete documentation package delivered to the employer after each site visit. No clinic trip required.
Respirator Fit Testing - Qualitative and Quantitative
Qualitative Fit Testing (QLFT) | Quantitative Fit Testing (QNFT) |
Pass/fail test using challenge agents – saccharin aerosol, BitrexTM bitter solution, or isoamyl acetate (banana oil) | Machine-based measurement of actual leakage using PortaCount or controlled negative pressure equipment |
Used for: N95 filtering facepieces, half-face disposables, and qualitatively-tested half-face elastomerics | Used for: Half-face and full-face elastomeric respirators, supplied-air respirators, and PAPRs |
Worker must not have facial hair in the sealing zone | Provides a Fit Factor number – OSHA requires 100 for half-face, 500 for full-face |
Outcome: Fit test certificate with respirator make, model, and size issued to employer and worker | Outcome: Quantitative fit factor report, OSHA-compliant certificate, and recommendation for correct respirator model |
Pulmonary Function Testing (PFT) - Spirometry
OSHA mandates PFT as part of the medical surveillance program for workers exposed to specific hazardous substances. It is also the clinical baseline Occucare’s physicians use to determine whether a worker is medically fit to wear a respirator – the required Step 2 in the 29 CFR 1910.134 compliance sequence.
What PFT Measures
Lung capacity and airflow: FVC (Forced Vital Capacity), FEV1 (Forced Expiratory Volume in 1 second), and FEV1/FVC ratio – the gold standard metrics for occupational respiratory surveillance
When OSHA Mandates It
Silica exposure (29 CFR 1910.1053) · Asbestos (29 CFR 1910.1001) · Beryllium (29 CFR 1910.1024) · Cadmium · Formaldehyde · Benzene when respirators are used · Cotton dust
What Occucare Delivers
NIOSH-approved spirometry equipment · Board-certified occupational medicine physician review · Baseline and periodic testing records · Written physician opinion to employer · Integration with medical direction program
Baseline vs. Periodic PFT – What Employers Must Track
A baseline PFT establishes the worker’s lung function at the time of hire or initial hazardous exposure assignment. Periodic PFTs – typically annual – are then compared against the baseline to detect early signs of occupational lung disease. Without a documented baseline, later deterioration cannot be attributed to workplace exposure, leaving employers exposed to workers’ comp liability they cannot defend. Occucare documents both in a longitudinal record accessible to the employer.
Pre-Placement Physical Screenings
Pre-placement testing determines whether a new hire can physically and medically perform the essential functions of their assigned role before they step onto the job site. Occucare’s mobile unit delivers the complete pre-placement package in a single site visit, eliminating the mobilization bottleneck created by offsite clinic scheduling.
| What’s Included in Pre-Placement Package | Why It Matters for Employers |
| Medical history review and physician examination | Establishes the worker’s baseline health record – critical for future workers’ comp defense |
| Pulmonary function testing (PFT / spirometry) | Baseline lung function record before hazardous exposure begins |
| Respirator medical evaluation and PLHCP clearance | Legally required before fit testing can proceed under 29 CFR 1910.134 |
| Respirator fit testing – QLFT or QNFT as required | Worker cleared and assigned correct respirator make, model, and size |
| Audiometric baseline testing (hearing) | OSHA-required under 29 CFR 1910.95 for noise-exposed workers |
| Vision screening | Required for equipment operators, drivers, and safety-sensitive roles |
| Drug screen (DOT or non-DOT, per employer protocol) | Pre-employment drug testing completed in the same site visit |
| Job Task Analysis documentation | Medical determination that the worker can safely perform specific physical demands of their assigned role |
How Occucare's Mobile Testing Program Works
From scheduling to documentation delivery, the process is designed to minimize disruption to your operation and produce a complete, OSHA-defensible record.
Step 1
Program Intake & Site Assessment
Occucare’s medical team reviews your workforce exposure profile, job task requirements, and existing respiratory protection program. We identify which workers need QLFT vs. QNFT, which exposure groups require PFT, and what pre-placement package applies to each role. A site assessment is completed to confirm mobile unit access and scheduling logistics.
Step 2
Medical Evaluation - PLHCP Questionnaire Review
Before any fit testing occurs, every worker completes the OSHA-mandated respirator medical questionnaire (Appendix C). Occucare’s board-certified occupational medicine physicians review each questionnaire and issue written medical clearance letters. This is the legally required Step 2 that most mobile testing vendors skip.
Step 3
Mobile Unit Deployment to Your Site
Occucare’s fully equipped mobile testing unit arrives at your job site, facility, or staging area on the scheduled date. Equipment includes spirometry instruments (NIOSH-approved), PortaCount quantitative fit testing devices, qualitative fit testing supplies, and a private examination area for medical evaluations.
Step 4
Testing Execution - Full Crew or Targeted Groups
Workers are tested in an efficient workflow that minimizes time off the job. The sequence: medical evaluation review → PFT spirometry → respirator fit testing → additional pre-placement components as scheduled. A trained medical team processes 15-40 workers per day depending on the testing protocol.
Step 5
Medical Director Review & Clearance
All results are reviewed by Occucare’s board-certified occupational medicine physicians. Physician opinions are documented. Workers who do not clear medically are managed through Occucare’s case management pathway – not left without a follow-up plan.
Step 6
Complete Documentation Package Delivered to Employer
The employer receives: individual fit test certificates (respirator make, model, size), PLHCP medical clearance letters, PFT spirometry records, pre-placement examination documentation, and program-level compliance summary. All records are formatted for production during OSHA inspections.
The Numbers: Mobile Testing vs. Sending Crews to a Clinic
The decision to use a mobile testing program versus dispatching workers to an offsite clinic is not just about convenience. It is a direct labor cost and compliance reliability calculation.
| Factor | Offsite Clinic Testing | Occucare Mobile Testing |
| Productivity loss per worker | 2-4 hours including travel and wait time | 20-40 minutes on-site – worker returns to job immediately |
| Labor cost on 60-worker crew at $65/hr | $7,800-$15,600 in lost productivity | Estimated $1,300-$2,600 – mobile scheduling is parallel, not sequential |
| PLHCP medical clearance included | Often not – you schedule separately or receive fit testing only | Yes – board-certified occupational medicine physicians provide clearance and sign off |
| Documentation completeness | Fragmented – multiple providers, multiple portals, manual consolidation | Single documentation package delivered in full after each site visit |
| OSHA defensibility | Gaps common – clearance, fit test, and PFT rarely documented as an integrated program record | Full compliance sequence documented – clearance letter, fit test certificate, PFT record, all from one provider |
| New hire mobilization speed | 2-3 day delay waiting for clinic appointment and result turnaround | Same-day clearance possible when testing is scheduled at hiring site |
Why Occucare for Your Mobile Testing Program
Not all mobile testing programs are equivalent. The difference between a vendor who sends a technician with a PortaCount machine and a provider like Occucare is the physician layer – and that layer is what OSHA requires before fit testing can legally proceed.
| What Most Mobile Testing Vendors Offer | What Occucare Delivers |
| Fit testing technicians – not physicians | Board-certified occupational medicine physicians overseeing every program |
| Fit testing only – no PLHCP medical evaluation included | Full compliance sequence: medical evaluation → PLHCP clearance → fit testing → PFT → pre-placement |
| Individual test certificates – no program documentation | Employer-facing compliance package: clearance letters, certificates, spirometry records, program summary |
| No integration with injury management or medical direction | Same physicians overseeing your workers’ respiratory clearance also manage your injury program – one integrated occupational health model |
| National vendor – no local Houston presence or industry focus | Houston-based, serving construction and industrial employers across Texas since 1984, with 3,000+ clinic network for clinic-based testing when preferred |
| Workers who fail have no follow-up pathway | Failed or borderline clearances managed through Occucare’s case management system – not left unresolved |
The 93% Standard
Occucare manages 93% of workplace injuries as first aid – without escalation to recordable incidents. The same clinical discipline that keeps your injury program off the OSHA 300 log is applied to your respiratory protection program. Medical oversight is not an add-on. It is the foundation of every service Occucare provides.
Frequently Asked Questions
Yes. Under 29 CFR 1910.134(e), employers must provide a medical evaluation using the OSHA-required medical questionnaire (Appendix C) before any employee is fit tested or required to use a respirator. The questionnaire must be reviewed by a PLHCP - Physician or Licensed Health Care Professional - who then provides a written opinion to the employer. Fit testing cannot proceed until this clearance is issued. Many employers are unaware of this requirement and run fit testing programs that are technically invalid under the standard.
Qualitative fit testing (QLFT) uses challenge agents - saccharin aerosol, BitrexTM, or isoamyl acetate - to detect whether the worker can smell or taste the agent through the respirator. It is a pass/fail test appropriate for N95 filtering facepieces and half-face disposables. Quantitative fit testing (QNFT) uses a machine - typically a PortaCount device - to measure actual particle penetration and calculate a Fit Factor number. OSHA requires a Fit Factor of at least 100 for half-face respirators and 500 for full-face respirators. QNFT is required for any respirator that cannot be qualitatively tested, including full-face and supplied-air respirators.
OSHA mandates PFT as part of the medical surveillance program for workers exposed to specific hazardous substances including silica (29 CFR 1910.1053 and 1926.1153), asbestos (29 CFR 1910.1001), beryllium (29 CFR 1910.1024), cadmium, formaldehyde, benzene when respirators are used, and cotton dust. OSHA also recommends PFT for any worker who will be required to wear a respirator, as part of the medical evaluation process. In construction and industrial settings, silica and asbestos exposure are the most common triggers for mandatory PFT programs.
OSHA requires fit testing before the initial use of a tight-fitting respirator and at least annually thereafter. Additionally, fit testing must be repeated whenever the worker reports a change that could affect fit - including significant weight change, major dental work, facial scarring, or surgery involving the face. For pre-placement programs, fit testing is completed as part of the initial screening before the worker begins any task requiring respiratory protection.
Yes. Occucare's mobile testing program is designed to deliver the complete pre-placement package - medical evaluation, PFT spirometry, respirator fit testing, audiometric testing, vision screening, and drug screen - in a single site visit. This eliminates the mobilization bottleneck created when new hires must schedule multiple clinic appointments before they can be cleared for job site assignment. For large crews, Occucare schedules mobile testing to align with your onboarding or project mobilization timeline.
The employer receives a complete compliance documentation package after each site visit, including: PLHCP medical clearance letters for each worker evaluated, fit test certificates documenting respirator make, model, and size for each worker, PFT spirometry results with physician interpretation, baseline records for future periodic testing comparison, and a program-level summary for OSHA program administrator records. All documentation is formatted to meet OSHA recordkeeping requirements and is available for production during inspections.
Workers who do not receive medical clearance, or who cannot achieve an acceptable fit with any tested respirator model, are managed through Occucare's occupational medicine and case management pathway. This includes physician consultation, evaluation of alternative respirator options such as supplied-air respirators or PAPRs, and documentation of the clinical rationale for any job duty modifications. Workers are not cleared to perform respiratory-hazard tasks until a safe pathway is established and documented.
Related Services
Mobile Clinic Units
Full-service mobile medical units delivering injury care, occupational health evaluations, and compliance testing to your project site.
DOT Drug Testing Mobile Units
Mobile DOT drug testing delivered to your job site for post-accident, random, and pre-employment testing under 49 CFR Part 40.
OSHA Medical Surveillance Programs
Structured surveillance programs for silica, asbestos, beryllium, noise, and other OSHA-regulated hazardous exposures - with physician oversight and longitudinal record management.
Corporate Medical Direction
Board-certified occupational medicine physicians embedded in your safety and HR program - managing injury decisions, compliance oversight, and return-to-work from a position of clinical authority.
Schedule Your Onsite Testing Program
If your workforce includes workers wearing respirators, exposed to silica or chemical hazards, or being onboarded for safety-sensitive roles – your compliance program needs to be built on physician-reviewed documentation, not technician-only testing. Occucare brings the complete sequence to your site.
Ready to bring OSHA-compliant testing to your job site?
Talk to Occucare’s team about your workforce size, testing requirements, and scheduling. We serve construction and industrial employers across Houston and Texas.