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December 12, 2021 By e-Patient Dave 5 Comments

Found a bargain CO₂ meter worth having for virus defense

As I’ve blogged before, ventilation is one of the most important defenses against air that might be contaminated with coronavirus or anything else, and a CO₂ monitor is a good way to check it, wherever you are. I’ve bought several models and have taken them with me into stores, restaurants, gyms, doctors’ offices. (Yes, doctors; all the ophthalmologists I’ve visited have bad ventilation, except at Lahey Health. Pharmacies, and doctors’ offices in hospitals, have all been decent, I’m happy to say!)

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Filed Under: Coronavirus Tagged With: carbon dioxide, co2, coronavirus, covid-19, ventilation 5 Comments

February 15, 2021 By e-Patient Dave 7 Comments

Update on CO₂ monitoring for virus protection

Note: tomorrow I’ll have an important update on the coming surge of the B117 variant.


The Washington Post ran a big piece on CO₂ monitors last week, and I felt smug, because I scooped ’em with my Jan 23 post. CO₂ is a good indication of air freshness, which is important because fresh air dilutes any contaminants, including virus particles. Their article:

In a major new pandemic trend, people are turning to carbon dioxide monitoring devices to help assess ventilation quality

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Filed Under: Coronavirus Tagged With: carbon dioxide, co2, coronavirus, covid-19, monitoring, virus 7 Comments

January 23, 2021 By e-Patient Dave 14 Comments

Ventilation for COVID-19 defense, part 2: CO₂ and new warnings

I’ve started compiling all my virus posts into a /covid19 page.

Four months ago in Winter’s coming. Time to talk about ventilation for coronavirus defense, I talked about ventilation (fresh air) and about HEPA filters for cleaning indoor air. Here’s an update, focusing particularly on the latest bee in my bonnet: CO₂ detectors.

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Filed Under: Coronavirus, patient engagement Tagged With: carbon dioxide, co2, coronavirus, covid-19, hvac 14 Comments

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