Where infection risk remains on a flight, from seatmates to tray tables

Summary
Germs in airplane cabin air meet HEPA filters, top-to-bottom airflow and dry, pressurized cabins — here is what each does and where infection risk remains
Description from Quartz.
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Where infection risk remains on a flight, from seatmates to tray tables
Germs in airplane cabin air meet HEPA filters, top-to-bottom airflow and dry, pressurized cabins — here is what each does and where infection risk remains
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