Is the air system turned on when you get on and off a plane

Now that passengers can fly without wearing a mask, viewers have new questions about air quality on planes.
The FAA says airline carriers are not required to have air ventilation while passengers are boarding or disembarking.

What happens if you don't put your phone in airplane mode? - Lonely Planet

An advisory light went off 3 times before a door plug came off a Boeing plane : NPR

The Basics of the Cockpit of a Plane

AirAsia pilots may have turned off plane computer system before crash, report claims, AirAsia flight QZ8501

The new aircraft, routes and airplane cabins taking off in 2023

Is there an FAA regulation to switch off the air-conditioning during take off? - Aviation Stack Exchange

Forces on an Airplane

Air conditioning on planes: How airline cabins are kept cool

How Fast Do Airplanes Take Off? - FLYING Magazine

How does Aircraft function its Electrical system and ACU when the main engines are off? - SpaceGen Aviation

VilogaRC Remote Control Airplane RTF 4 Channel RC Plane 402MM Wingspan Micro Scaled Warbird with One Key Aerobatic One Key U-Turn and Gyro Stabilization System (P39) : Toys & Games

Airport Operations

How Much Fuel Does an International Plane Use for a Trip?

Does Airplane Mode Turn Off GPS? [Top Tips]

Aircraft Water and Waste Systems