A new study finds airports and commercial airliners are breeding grounds for germs and bacteria, NBC News reported.
Website Travelmath.com sent microbiologists to five airports and onto four airplanes and asked them to determine which surfaces were the dirtiest.
Researchers found tray tables are the germiest surface air travelers will encounter on their trip, with an average of 2,155 bacteria colony-forming units per square inch. They were followed in descending order by the overhead air vent, the lavatory flush button and the seat belt buckle.
In airports, the microbiologists identified drinking fountain buttons and bathroom stall locks as the dirtiest places.