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Mask Fit Testing: Everything You Need To Know

Why Fit Testing is Critical for N95 Masks

Understanding NIOSH & Fit Testing

NIOSH (National Institute for Occupational Safety and Health) sets the standard for N95 filtration efficiency, ensuring that N95 respirators can filter at least 95% of airborne particles. However, NIOSH does NOT test mask fit—this means that while an N95 mask is certified for filtration, it must be fit-tested to ensure a proper seal on the wearer’s face.

What Happens If an N95 Mask Doesn't Fit Properly?

❌ Air leaks around the edges of the mask.
❌ Reduced protection from airborne contaminants.
❌ Increased exposure to hazardous particles, putting workers at risk.

The only way to ensure proper fit and maximum protection is through a quantitative fit test.

🔬 What is Quantitative Fit Testing? (Gold Standard for N95 Masks)

Quantitative fit testing is the most accurate and reliable method for ensuring an N95 mask fits properly. It uses advanced laser technology and precise air sampling to measure how well a mask seals against the face.

✔ How Quantitative Fit Testing Works:
1️⃣ An air sample is taken inside and outside the mask while the wearer performs various movements.
2️⃣ The filtration performance is analyzed using a TSI Portacount Fit Tester.
3️⃣ The system calculates a Fit Factor Score, confirming whether the mask provides full protection.

📢 Why Quantitative Fit Testing is the Best Choice:
✅ 100% accurate – Cannot be cheated or manipulated.
✅ Scientifically validated – Ensures proper seal and protection.
✅ Less intrusive than qualitative fit testing.

❌ Why Qualitative Fit Testing is Less Reliable

Qualitative fit testing is a simpler method but lacks precision and reliability. It involves placing a hood over the worker’s head and spraying a solution inside. If the worker can taste the solution, the mask fails the test.

⚠ Problems with Qualitative Fit Testing:

  • Subjective results – Workers might not accurately report taste detection.
  • Risk of false positives/negatives – Cold symptoms or allergies may affect taste perception.
  • Sanitation concerns – Shared hoods could spread viruses like COVID-19 without proper disinfection.

📢 For the highest level of accuracy and safety, we ONLY recommend Quantitative Fit Testing.

🛒 Shop Our Selection of High-Performance N95 Masks

At PPEOnline.ca, we offer a wide selection of top-rated, fit-tested N95 respirators designed for:

🔹 Healthcare & Medical Professionals
🔹 Construction & Industrial Workers
🔹 First Responders & Essential Workers
🔹 General Workplace Safety & Infection Control

💡 Not sure which N95 mask is right for you? Contact us for expert recommendations!

🔎 Why Choose PPEOnline.ca for Your N95 Needs?

✔ Industry-Leading PPE Supplier – Trusted by businesses across Canada.
✔ Fit-Tested N95 Respirators – Ensuring maximum protection and safety.
✔ Fast & Reliable Shipping – Get your PPE supplies quickly.
✔ Exceptional Customer Support – Helping you find the best protective gear.

📞 Have questions about N95 fit testing or mask selection? We’re here to help!

📧 Email: info@ppeonline.ca
📞 Call: 226-347-7445 | 1-877-347-7445

🚀 Shop now and get the best N95 protection available today!

 

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