Using the Bobrick B - 3725 hand dryer is easy. Just place your hands inside the 6 - foot deep drying alcove. The dryer will start automatically and dry your hands in about 17 seconds. When using it, make sure to place your hands properly for the best drying effect. Avoid touching the ceramic water - absorbent surface with dirty hands. For maintenance, regularly clean the dryer with a soft cloth. Check the power connections occasionally to ensure they are secure. If you notice any issues, like unusual noise or longer drying times, it's best to contact a professional for inspection and repair.