What is the dirtiest spot on an airplane?

Airplanes are a popular mode of transport, but some areas are not cleaned often. Research shows that the headrest is the dirtiest surface, harboring more bacteria than the toilet or tray table.

Unlike toilets that are disinfected after each flight, headrests are rarely cleaned, making them a breeding ground for microorganisms. Passengers can use their own travel pillow or clean the headrest with disinfectant wipes.

Other areas of concern include tray tables, seatbelts, seat pockets, and toilet handles.