Hand dryers in public restrooms are often touted as a more environmentally friendly way of drying your hands. However, a new study is questioning whether the hot air method is sanitary.
Indeed, the study says that the air dryers are blowing feces particles onto your drying hands, according to Newsweek.com. The hand dryers apparently not only blow out hot air, they also "suck in" air that's in the bathroom, the article states.
Bacterial feces can become "aerosolized" from the flushing of toilets, one of the researchers told Newsweek. The feces particles also can spread to other parts of a building, according to the article.
The results of the study, which came from scientists comparing normal bathroom air in 36 restrooms at the University of Connecticut to the air coming from dryer nozzles, indicated that more bacterial colonies developed in samples exposed to the hand dryer air.
The study was recently published in the journal Applied and Environmental Microbiology.
Read Newsweek's entire article.