Hand dryers vs Paper towel

Most of the toilet will set the BOTH hand dryers and paper towel to dry their hand. Frankly speaking, I will use paper towel more in my daily life because the paper towel is cleaner than hand dyers in my concept. There are some rumors also said that the hand dryers will help to spread the bacteria in the toilet.

In this video, which it provided by Dyson, said that the hand dryers is more cleaner than use the paper towel They tested and the result show that the hand dyers will leave less bacteria on hand. Not just cleaner, ther hand dyer can replace the paper towel and save the paper. Therefore, the hand dryer should be promoted.

Reference:
https://www.youtube.com/watch?v=YKxT1k1cmXc
http://www.restroomdirect.com/hand-dryers-vs-paper-towels-hygiene-studies.aspx