The most popular place to locate the hand dryers will be inside the washroom. Normally, people who went to washroom for “business” will opt to tissue or hand dryer, to dry up their hand. Nowadays, hand dryer operates in an auto way. It can sense your hand is there and the dryer will start to blow out the hot air. It will last for several seconds before it goes off automatically. For me, I seldom use a hand dryer as it takes time to make your hand dry. Tissue will be more useful in this case, but it is not really environmental friendly.