Jonathan McCallum

Market Segment Manager: Occupational Health, Industrial Hygiene & Environmental Monitoring

Introducing Gas Detective™: The phone app for Gastec detector tubes

March 15th, 2021

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

January 5th, 2019

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

April 17th, 2018

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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