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Why aren’t we looking into uv lamps in the air handlers? Or could a plane have a way to continually flush out old air and bring in new air? It’s 2020 we shoul

• whoisjuan 7y ago
  Dude. That's literally what airplanes do. I don't know where people got the idea that the air in a cabin is "recycled". The air in an airplane will fully cycle with fresh new air every 4 or 5 minutes to remove carbon dioxide build-up. The air you breathe on an airplane is the air that is compressed by the engines or the auxiliary power unit, cooled down by the A/C, and diverted to the cabin after passing through a HEPA filtering system. People get sick in planes simply because it's a freaking small tube with hundreds of people sharing the space for several hours. It wouldn't be different than putting the same amount of people on a ground facility with the same dimensions and good ventilation.
• mvgoogler 7y ago
  Only 50% of the air on airplanes is recirculated and the recirculated air is filtered through HEPA filters similar to what is used in hospital ICUs. https://www.who.int/ith/mode_of_travel/tcd_aircraft/en/ https://www.who.int/ith/mode_of_travel/tcd_aircraft/en/ "Research has shown that there is very little risk of any communicable disease being transmitted on board an aircraft. The quality of aircraft cabin air is carefully controlled. Ventilation rates provide a total change of air 20–30 times per hour. Most modern aircraft have recirculation systems, which recycle up to 50% of cabin air. The recirculated air is usually passed through HEPA (high-efficiency particulate air) filters, of the type used in hospital operating theatres and intensive care units, which trap dust particles, bacteria, fungi and viruses."