Jonathan McCallum
Market Segment Manager: Occupational Health, Industrial Hygiene & Environmental Monitoring
Introducing Gas Detective™: The phone app for Gastec detector tubes
Gastec has become a bestselling gas detection system in Canada because it is reliable, easy to use and can measure over 300 gases. Gastec...
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Bruce Levitt
President
Chemical Routes of Entry
There are four major routes of entry chemicals can follow: Inhalation (breathing) Absorption (skin contact) Ingestion (eating) Injection How a chemical enters your body: Breathing is the most common...
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Jonathan McCallum
Market Segment Manager: Occupational Health, Industrial Hygiene & Environmental Monitoring
Respirator Fit Testing Tips and Tricks: Basic Troubleshooting
If you’ve ever performed QNFT (quantitative) respirator fit testing, you know that the process can sometimes be challenging and interspersed with occasionally failed...
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