: "I totally respect your decision to wear a mask on a plane or wherever. But apparently while flying, the AC system on a plane recirculates the air through a HEPA filter and introduces outside air at a certain percent. It is estimated that the air is changed every 3 minutes. On the tarmac not so much"

@jweitzenheimer.bsky.social

I totally respect your decision to wear a mask on a plane or wherever. But apparently while flying, the AC system on a plane recirculates the air through a HEPA filter and introduces outside air at a certain percent. It is estimated that the air is changed every 3 minutes. On the tarmac not so much

May 27, 2024 at 13:36 UTC

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