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Originally Posted by Mikoyan
Epidemiologist blog I follow talks about masks and planes this week. Backed up with studies and literature reviews. It's a good read.
Tldr: airplane filters don't run during boarding/taxiing.
People move throughout the plane, and filters help with aerosols but not the bigger droplets.
https://yourlocalepidemiologist.subs...sion-on-planes |
According to numerous articles like this one:
https://www.wsj.com/amp/articles/the...ff-11617800215
Air is still run through and cycled either through the APU or ground powered units, as well:
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Near the start of the pandemic Boeing issued an advisory to airlines to use onboard APU power to run ventilation at full strength on the ground to avoid stretches of no airflow. Pre-pandemic, airlines typically used ground air to save the expense of burning jet fuel to run the APU.
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