NEWS

Home

LAINA SPECIAL VEHICLE

NEWS

What is a negative pressure ambulance

The so-called negative pressure is the use of technical means to make the air pressure in the car lower than the outside atmospheric pressure, so the air can only flow from the outside to the inside of the car when it flows freely, and the negative pressure can also harmlessly treat the air inside the car and then discharge it. , To prevent more people from being infected, and to minimize the chance of cross-infection among medical staff when treating and transferring infectious diseases and other special diseases. As well as debridement and suture surgery and cardiopulmonary resuscitation and other rescue operations can be carried out in an ambulance, which is unimaginable in an ordinary ambulance. It is mainly used for the rescue of special diseases such as critically ill patients and infectious diseases.

The requirements of the National Ministry of Health: 20 air changes per hour, negative pressure between 10Pa and 38Pa, and filtration separation rate of 99.9%

The negative pressure in the patient's cabin of the negative pressure ambulance refers to the relative pressure difference between the cabin and the outside atmosphere, which is mainly achieved by the active exhaust of the exhaust fan to the outside atmosphere and the sealing treatment of the cabin. Before being discharged to the atmosphere, the air in the patient's cabin is generally filtered by a high-efficiency filter (99.97%@0.3um), which can effectively reduce the spread and pollution of pathogenic microorganisms to the external environment from the ambulance. This method is only a physical isolation method. Bacteria and viruses are blocked on the surface of the high-efficiency filter and cannot be killed. After the ambulance is used, the cabin should be disinfected.

MORE INFORMATION

■

The Lifesaving Role of Medical Ambulances in Critical Situations

—

2025-04-29