The safety of patients is always the first. Hospital operating rooms are equipped with the most professional safety equipment. For example, hospitals are equipped with the most advanced medical equipment for patients with various emergencies, such as cardiac defibrillators (adjustable abnormal heartbeat therapeutic instruments) that can only be seen in major well-known university general hospitals in Korea, and optical index tracheal intubation (instruments for anesthetizing patients whose mouths can't be opened) to ensure the safety of patients. The equipment quality of the operating room has been unanimously certified by the professors of plastic surgery in famous Korean university hospitals.