galileo, a popular German documentary, investigates the myth that hand dryers spread germs and bacteria. In order to show if electric hand dryer spread germs to the air they used fluorescent liquid. Their conclusion: modern electric hand dryer do not spread germs to the air because they have special filters as several studies have proven.
The film team visited Starmix Electrostar GmbH at Reichenbach Germany where the first electric hand dryer has been invented. Also Dyson producing the fastest model actually available on the market at that time was mentioned.