Positive pressure

[1][2] Use is also made of positive pressure to ensure there is no ingress of the environment into a supposed closed system.

A typical example of the use of positive pressure is the location of a habitat in an area where there may exist flammable gases such as those found on an oil platform or laboratory cleanroom.

[citation needed] Hospitals may have positive pressure rooms for patients with compromised immune systems.

Positive pressure, created by the closure of anterior and posterior neuropores of the neural tube during neurulation, is a requirement of brain development.

aerosolized COVID-19 and active TB) from escaping into surrounding areas, thereby preventing the spread of airborne pathogens to outside the room.