Why can airplane travel expose you to a high concentration of germs if airlines say the area is cleansed with filters and the plane is cleaned regularly ?
In: Biology
The pressurization system in any turbine-powered aircraft comes from the engines sucking in outside air. Before the fuel is injected, a small portion of that air is diverted and cooled down and used to pressurize the cabin through the air conditioning vents. The cabin pressure is controlled by monitoring how much air is allowed to escape the cabin. Air in a modern airliner is constantly being renewed by air drawn through the engines.
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