What is the purpose of negative air pressure in containment?

The primary purpose of maintaining negative air pressure in containment areas is to prevent the migration of hazardous fibers and contaminants from the containment zone to surrounding areas. This technique is essential in scenarios where asbestos, lead, or other toxic materials are present. By keeping the air pressure within the containment lower than outside, any potential leaks or openings ensure that air flows into the containment, effectively trapping contaminants inside. This method helps protect workers and other individuals in the vicinity from exposure to harmful substances by minimizing the risk of airborne contaminants escaping the designated area.

Maintaining negative pressure is a critical aspect of safety protocols in various industrial and construction settings, especially during demolition, renovation, or remediation activities involving hazardous materials.