If you’re looking forward to flying after the Covid-19 outbreak, but are concerned about cabin air quality, this video by Delta might help assuage your fears. All of the airline’s aircraft are equipped with hospital-grade HEPA air filters, and all recirculated air is passed through these filters before re-entering the cabin or being mixed with fresh air. The air in the cabin is completely changed every three minutes, on average
How air circulates in the aircraft cabin
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