Paper towels soak up water because they are loosely woven which enables water to travel between the fibers, even against gravity (capillary effect). Paper towels have similar purposes to conventional towels, such as drying hands, wiping windows and other surfaces, dusting and cleaning up spills.
One study shows that rubbing hands together under a hand dryer, which is encouraged by their directions for users, actually causes bacteria to be loosened from hair follicles. Research also indicates those bacteria and others on the hands can be blown around the area by the air from a hand dryer, spreading them to other surfaces and people.
With paper towels, you don’t need to rub your hands together to get them completely dry. The germs are trapped within the paper towel and not dispersed throughout the area. Some research suggests that the rubbing of hands when using hand dryers can even cause mild to moderate skin damage.
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