Adventures in ventilation from last weekend’s flight on @AirCanada Airbus320 with about 130+ people on board
Ventilation at #yyj airport foyer good, as noted by the pCO2 monitor (outdoors ~ 420; under 800 ideal as proxy for good ventilation to mitigate #COVIDisAirborne ) 1/
In lineup for security, high plexiglass barriers preventing good circulation; CO2 rising 2/
On the gangway to the plane, waiting to board
3/
We had to de-ice. 40+ minutes waiting on the ground with 130+ people breathing each other’s air, and the @AirCanada ventilation system not turned on yet (it doesn’t start till the engines are on)
30 minutes after takeoff, and the aircraft’s ventilation system now running (CO2 high, but at least the circulated air is going through the aircraft’s #HEPA filters now)
Stayed about this level for remainder of 4.5 hr flight
5/
So:
- airport ventilation systems seem good (same at #yyz)
- as crowd density increases in the airport, the CO2 climbs to the 600-800 levels
- before aircraft engines and ventilation fans start, CO2 goes ballistic. Can @AirCanada improve ventilation during that period?
End/
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