HEPA Air Filters Serve Critical Function in Containing Pathogens Born in Airborne Infection Isolation Rooms

Every modern healthcare institution implements practices for infection prevention and control to ensure patient safety. A key strategy for managing the spread of infectious diseases is isolating patients with infections in airborne infection isolation rooms (AIIRs).

These rooms, designed for a single patient, confine the infected individual in a private area and use advanced ventilation systems to remove infectious aerosols from the surroundings. Research shows that the rooms are highly effective in preventing the spread of infectious diseases within a hospital.

Most infectious diseases are transmitted between people through direct contact, touching contaminated surfaces, or inhaling airborne droplets. When people with an infection cough or sneeze, they release respiratory droplets and aerosols carrying bacteria or viruses into the air. The airborne pathogens can then spread through the environment and settle on surfaces which are then known as fomites. Anyone who touches these surfaces or breathes air containing infected droplets or aerosols, is at a higher risk of contracting the disease. This includes patients, staff, and visitors in the affected area.

The Centers for Disease Control recommends specific precautions for treating patients potentially infected with contagious diseases. These include isolating them in AIIRs to prevent the spread of infection. Unlike general patient rooms, AIIRs are sealed using negative pressure that keeps air inside with controlled...

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