according to Travelmath
Bathroom Countertop - 1,288,817 CFU
Hotel TV Remote - 1,211,687 CFU
Hotel Desk - 614,907 CFU
Tray Table - 2,155 CFU
Seat Belt Buckle - 230 CFU
Toilet Flush Button - 265 CFU
***Note that the Public Health and Safety Organization considers 10 CFU per square inch to be clean, and 10-100 CFU per square inch to be relatively clean.
Travelmath sent a team to gather 36 bacteria swabs from nine hotels. The below values are the average of nine hotels, in colony forming units (CFU) per square inch.
Travelmath sent a microbiologist to collect 26 samples from four flights to find the germiest places. The below values are the median of the four flights in CFU per square inch.
The average hotel TV remote is approx. 7 times more germ-infested than a dog bowl.
The average 3-star hotel is cleaner than the average 5-star hotel
An airline seat belt buckle is on average 8 times more germ-infested than your cell phone.
An airline tray table is on average 12 times more germ-infested than your home toilet seat.