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 fi

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.