Non-city-licensed ambulances and ambulances not signed the name of the unit on the vast majority of illegal ambulance, because they use industrial oxygen, medical equipment is incomplete, there is no fixed professional doctors, equipment and cars can not be properly disinfected easily lead to cross-infections, bringing a second injury to the patient, and at the same time pose a threat to the family's health. They generally lure the car at a low price, on the way to a variety of reasons to increase the price, and even extortion; the worst thing is that once the accident they fled, nowhere to be found.
Black ambulances are generally dispatched by the emergency center management, hospitals to purchase, in the emergency center for the record. Black ambulance for illegal vehicles, ambulance has a special standard.