Does Activated Carbon Really Work

Does Activated Carbon Really Work in Filters?

Companies sell activated carbon filters (also called “charcoal filters”) to remove chemicals like formaldehyde and benzene, but does carbon really work? The Smart Air lab put real-world carbon filters to the test. Who Needs Carbon Filters Anyway? I wrote early on that my number one concern in China is particulate … Read more

Can You Clean Masks With Alcohol?

With mask shortages during the coronavirus outbreak, some doctors are sanitizing masks with alcohol so they can re-use them. But this raises questions about whether alcohol actually works and whether it degrades the masks. Does Alcohol Kill Viruses? The research on alcohol is clear. Alcohol kills viruses. Technically, viruses aren’t alive, … Read more

Current Portland Air Quality (2021 Wildfire Live Readings)

Current Portland Air Quality (2021 Wildfire Live Readings) Portland air quality exceeded the WHO annual limits on nearly one-fifth of days from 2020 to 2021. Despite the low percentage, Portland’s air quality averaged over 40 times the WHO recommended limit of dangerous PM 2.5 pollutants on its worse day in … Read more

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