The PetSpa was invented with the help of Veterinarians and Pet Psychologists. A 3-4 minute cycle provides a gentle, soothing, hydro-massage wash using tearless shampoo. After a 30 second rinse a dryer turns on and blow dries your pet for 20 minutes. The whole process takes only about 30 minutes. Longer haired pets may stay in longer. Your pet is not restrained inside the cabin which reduces stress. Several dozen nozzles wash your pet from all angles. It leaves them clean, dry and smelling great!