This means the air on a plane is completely replaced every two to three minutes, compared to every 10-12 minutes in an air-conditioned building, the BBC reported.
In fact, planes’ filters are comparable to those used to keep the air clean in hospital operating rooms and industrial clean rooms.
“Hepa (high-efficiency particulate air) filters are effective at capturing greater than 99.9 per cent of the airborne microbes in the filtered air,” the International Air Transport Association (IATA) states.
“Air supply is essentially sterile and particle-free.”
“It is generally accepted right now that when the plane is in flight and the ventilation system is up and running, it does a really good job of clearing the air of infectious particles,” disease transmission expert Dr Mark Gendreau told the Journal.