What type of air pressure is maintained in a negative air pressure system?

In a negative air pressure system, the air pressure inside a designated area is lower than the air pressure outside of it. This creates a suction effect that draws air from the surrounding environment into the space, helping to contain any potential contaminants or asbestos fibers within that area.

The purpose of maintaining negative air pressure is particularly important in asbestos abatement and remediation. By ensuring that the pressure is lower inside the containment area, the risk of airborne asbestos particles escaping into other parts of a building is minimized. It also helps to direct any airborne particles towards filtration systems, which can capture harmful substances before they exit into the environment.

Choosing negative air pressure over balanced, positive, or neutral air pressure is essential in hazardous work conditions, as it enhances safety protocols and minimizes the risk of exposure to airborne contaminants.