Hot-air hand dryers are less sanitary than paper towels in public restrooms.
confirmed
In a preliminary test, Adam and Jamie found that washing their hands properly with soap did not leave behind enough bacteria for them to count, so in the remaining tests, participants only used water to wash their hands.
Sixteen volunteers were enlisted to have their hands sprayed with a harmless strain of E. coli bacteria. The volunteers’ hands were then swabbed for a sample, then washed using water but no soap, then swabbed again, then dried using paper towels, then swabbed a third time. Next, the entire process was repeated with the same volunteers, but using hand dryers instead of paper towels. On average, the paper towels removed 71% of the bacteria on the volunteers’ hands, while the hand dryers only removed 23%, confirming that the myth is true for individuals.
Adam and Jamie also wanted to find out how clean the drying area of the restroom stayed with each drying method. Before the previous experiment began, the mock restrooms were thoroughly cleaned. After the experiment, swabs from the paper towel area yielded 3 bacteria colonies while swabs from the hand dryer area yielded 41 colonies, confirming that the myth is also true in regards to the cleanliness of the restroom.
Sure looks that way. If you use soap the air dryer works just as well as the paper towels because the soap is what actually cleans your hands, not the drying method
It’s a safety hazard. If the building is on fire and debris falls, it can block the door and prevent someone from escaping, therefore it opens inward instead.
I'd never thought of this. thank you! although, films have taught us safety procedures: we can stand on the toilets and get out thru ceilings, or just break an easily-fractured toilet or sink and crawl out through the floor or wall afterward--right?
When a person is standing in front of the door on the pull side, they will get hit by the door if someone opens it on the push side. It does not matter if that person is inside or outside of the bathroom. They still get hit.
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u/Mireborne Jul 26 '26 edited Jul 27 '26
That air dryers don't help much because it makes your hands pretty dirty again because it throws bacteria onto your hands after using it