Dryer Wars,

no I had not heard of them either,

 but they are there, paper or blower? that is the question, and a big answer it is too, both methods of drying hands in public bathrooms have there critics and admirers, and what a underhanded complicated war it is too, well there is so much money involved, so grab a coffee and prepare for a long, but very informative read here,

for myself I prefer the Dyson Air Blade, despite the fact and I quote from the article,

'Last year, a student of microbiology in California stuck a petri dish inside the maw of a Dyson Airblade for three minutes and then incubated it. Over the next 48 hours, the fungi and bacteria deposited on the dish by the dryer multiplied, growing into thickets of grunge. When she posted a photo of the dish on Facebook, 500,000 people shared it in a week. Dyson piped up, protesting that the experiment’s methodology was too vague to be meaningful, but it went practically unheard'

it looks and is a dirty war.