Originally Posted by
korrol
What passengers must surely now want is the kind of ventilation cycle you get in your car, where the air is changed every 2 minutes - and the stale old air is vented out the back.
The ECS on an airliner typically provides around 20 air changes an hour, so it's not much different from your family car.
Except that you're not sharing the car with 400 other passengers and their assorted ailments.
