What does negative pressure in an ambulance mean?

[DiAutumn]

Negative pressure in an ambulance refers to the ability of the ambulance's interior space to achieve the effect of a negative pressure cabin. This type of ambulance is also known as a professional ambulance. Here is a relevant introduction to negative pressure in ambulances: 1. Negative pressure cabin: When a professional ambulance completes the air exchange between the inside and outside of the vehicle, it first needs to disinfect and filter the air. This space is called a negative pressure cabin. 2. The significance of negative pressure: The so-called negative pressure means using technical means to make the air pressure inside the vehicle lower than the external atmospheric pressure. During the air flow process, air can only flow from the outside to the inside of the vehicle. Negative pressure can also treat the air inside the vehicle harmlessly before discharging it, thereby avoiding infection and minimizing the probability of cross-infection among medical staff.