Find out how much your energy provider charges per kilowatt hour and multiply this by how much power the hand dryer will use per day. For example, if your energy provider charges 36p per kilowatt hour, it will cost 72p to run a 1kW hand dryer for two hours per day.

In summary, hand dryers are not only spewing bacteria onto your hands, but they're also putting it in the air, and on any surface that air touches, promoting cross contamination and the spread of germs. Paper towels, meanwhile, remove moisture from your hands while also reducing the amount of germs that are present.