The air is not recirculated in the sense that what is in the plane stays in the plane. It is constantly refreshed and changes completely in about a minute. The air from the compression stages of the engines is run thru heat exchanging and filtering elements before it is infused into the aircraft thus pressurising it. At the same time air is exhausted into the atmosphere thru a valve/door to maintain the desired cabin altitude. Next time you have a chance look at the outside near the tail of your airplane around the rear doors and you will see a large opening about the size of an aircraft window partially closed by a door. That is the door that when closed allows the a/c to pressurize. In flight it modulates, ever so slightly to keep the cabin altitude steady.If there were to be a rapid depressurization that door would slam shut in an attempt to stop the pressure loss. Outside air, heated and cooled constantly moves through the cabin. It is not a closed system.
Oh come on. Don’t let facts get in the way of a good fun panic and conspiracy fest.
No thanks. Being in a moving tube with a person who was handling Ebola people before he kept changing planes is not my idea of a great flight. EIGHTY people are now being sought out for exposure. Best stance is still to not trust the current administration. They can’t even keep the front door locked.
Would viruses be filtered out?