What is the primary purpose of negative pressure rooms?

The primary purpose of negative pressure rooms is to contain airborne contaminants and prevent their spread. This is especially important in healthcare settings where patients may be infected with airborne pathogens, such as tuberculosis or certain types of respiratory viruses. By maintaining lower air pressure inside the room compared to adjacent spaces, any airborne particles that are expelled through coughing, sneezing, or even talking are contained within the room, effectively minimizing the risk of transmission to healthcare workers and other patients.

The design and ventilation system of negative pressure rooms ensure that air flows into the room but does not escape, thereby creating a controlled environment that helps protect the broader healthcare facility from potential contamination. This is a critical aspect of infection control in hospitals and health centers, especially in areas where patients with infectious diseases are treated.