Airliners have touted in the pandemic that planes have HEPA filtration which rem...

		jerlam 10 months ago \| parent \| context \| favorite \| on: Why a plane turned around when a passenger lost a ... Airliners have touted in the pandemic that planes have HEPA filtration which remove 99.95+% of particles in the air, which includes smoke particles. Battery fires will also produce other bad stuff in the air, but it's still a minor consideration compared to a fire which can bring down the plane.

The issue is how quickly they cycle the full cabin air volume.