by John Howey | Jun 13, 2023 | Air Quality
Introduction Wildfire season has hit Alberta hard this year, and many people are wondering how they can protect themselves from the overwhelming smoke at home, at school and at work. What is wildfire smoke made up of? Wildfire smoke is a mixture of gases and fine...
by John Howey | Mar 29, 2021 | COVID
Which Face Coverings Work Best? Last year, a consumer organization in the UK, “Which?” performed a consumer test on various types of fabric masks to determine which is most effective. They gave each mask a “bacterial filtration efficiency rating”, a standard test used...
by John Howey | Mar 3, 2021 | COVID
What are the differences between a respirator and face coverings? Normally, in industrial hygiene, we think about wearing respiratory protective equipment (RPE) to protect people from harmful contaminants such as asbestos, mould, and benzene. However, we now have to...
by John Howey | Jan 21, 2021 | COVID
Is a face covering like a using a chain-link fence to stop mosquitos? One of the common criticisms of face coverings centers around particle size. People will say that wearing a cloth mask to stop a virus is like “using a chain link fence to stop a mosquito.” It’s...
by John Howey | Jan 13, 2021 | COVID
Why are Public Face Covering Mandates Recommended? A study completed by Marianne van der Sande, Peter Teunis and Rob Sabel shows face coverings reduce aerosol exposure over time for all sorts of activities (see resources below). They claim that any type of general...
