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Relatively "pure". The cabin is pressurized by air being force in from the engines' compressor sections (it is in a stage before the fuel is introduced, so there are no fumes). The air constantly changes out because there is air "leaking" out of the plane all the time.
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Can passenger airplanes idle in the air?
No passenger aircraft can be idle in the air. Only a few number of military aircraft can do that. It is called hovering.
Are there any regulations on transporting pure lithium metal by air?
It is forbidden on any passenger aircraft. It is has to be labeled as 4.3 and it cannot be more than 15Kg.
Can bacteria survive in a recirculated air system?
Yes
What is the percentage of recirculated air in car is it fixed or how it can be varied?
Recirculated air in a car can vary. How the air conditioning is set, how fast the car is going, and whether or not the windows are open can all play a part in this.
What is an air taxi?
An air taxi is a small aircraft which makes passenger flights, usually to places not serviced by regular airlines.
What is the air force 1?
The big, customized passenger aircraft the US President use for travelling.
Is it possible to get inside the cargo room on a plane in the air?
Depends on the aircraft and its use. And as a paying passenger, no.
What is Air Force 1?
The big, customized passenger aircraft the US President use for travelling.
Does air conditioning make you sick?
Possibly the air is recirculated so the same air goes round and round
Why are airplanes always in the air?
They are not "always in the air", but if they are civil passenger or cargo aircraft, that may seem so. It is the only way they make money.
How fast do jets go?
most military air combat jet aircraft can go over mach 1.0, passenger aircraft fly at around mach 0.80
Where does the air flow into the heater?
All heaters work pretty much the same. Air intake is either from inside ( recirculated ) or from outside ( vent ) Most home heaters do not have a vent option, so they are pretty much taking in recirculated air through a filter.
