Respiratory Fir Test

Respiratory Fit Testing at Irwin's 


At Irwin's we offer comprehensive respiratory fit testing solutions designed to ensure the safety and compliance of your workforce in hazardous environments.

Qualitative Fit Testing


This method assesses the seal of the respirator based on the wearer's ability to detect a test agent, which can either have a sweet taste or a bitter taste.

Unlike quantitative fit testing, the qualitative approach is subjective and based on the user's perception, making it suitable for masks that do not require a tight seal.

Through a series of simple tests, we help identify the right mask and ensure it fits correctly, providing essential protection against particulate matter and harmful substances in the workplace.

Quantitative Fit Testing


This method measures the actual amount of leakage air flow into the facepiece respirators. Irwin's uses PortaCount Fit testing technology that counts particles inside and outside the respirator, calculating a fit factor that indicates how well the respirator fits.

PortaCount provides objective, numerical results, ensuring a more accurate assessment of the respirator’s fit. We will conduct a variety of fit test exercises using this machine such as Normal Breathing, Deep Breathing, Talking Exercise, and others to ensure that no airborne contaminants can enter the respirator filter. 

Why is Respiratory Fit Testing Important?

Fit test
Compliance with Regulations: Fit testing is mandated by occupational health and safety regulations in many jurisdictions.
Worker Safety: Proper respirator selection significantly reduces the risk of exposure to harmful airborne particles.
Performance Assurance: Regular respirator fit testing ensures respirators continue to perform as expected over time. 
Health Monitoring and Adjustment: Regular fit testing plays a critical role in identifying changes in an individual’s facial structure or size due to weight fluctuations, dental work, facial surgery, or natural aging. 
Training and Awareness: Fit testing sessions provide an excellent opportunity for workers to receive hands-on training on the correct use, donning, and doffing of respirators.

Irwin's Fit Testing Process

face seal
Initial Consultation: We start with an assessment of your workplace needs and the types of respirators in use (half-mask respirators, full-face respirators, and their types). We determine which of the fit test methods is most applicable to your wants at this stage.

On-Site Fit Testing Procedure at your Location or Ours!: Our fit testers usually conduct fit testing at your location for convenience and efficiency, but we also provide fit testing services at our offices.

Certification and Documentation: Post-testing, we issue certification for compliant respirators and provide detailed documentation for your records.
Follow-Up and Continuous Support: After the initial fit test, we provide ongoing support to address any questions that may arise. Whether it's adjustments to the fit, reassessment due to changes in an employee's facial structure, or updates on the latest respiratory protection technology, we're here to offer our expertise.


Who Needs a Respiratory Fit Test?

quantitative fit test

Healthcare Workers (frequent exposure to airborne pathogens, viruses, and hazardous substances)

Emergency Responders and Firefighters (often encounter smoke, toxic fumes, and chemical hazards)

Construction and Demolition Workers (exposed to dust, asbestos, silica, and other harmful particles)

Manufacturing and Industrial Workers (working with chemicals, paints, and solvents, need fit testing to protect against the inhalation of toxic vapors and fumes)

Agricultural Workers (involved in pesticide application, handling fertilizers, and working in environments with high levels of dust and mold)