Planes can be gross and the cleanliness of the water on board is questionable, at best. Some scientists go so…
:max_bytes(150000):strip_icc()/TAL-airplane-bathroom-sinks-PLANEWATER0723-f86f7e798b6e457d9a734f1a41712096.jpg "Why You May Want to Avoid Washing Your Hands in Airplane Bathrooms")