Airborne precautions should be implemented when:

Airborne precautions are essential for protecting healthcare workers and patients from diseases that are transmitted through tiny airborne particles. These microscopic particles can remain suspended in the air for extended periods, allowing them to be inhaled by individuals even at a distance from the source. Common diseases that require airborne precautions include tuberculosis, measles, and chickenpox.

To effectively implement airborne precautions, specific practices are followed, such as using N95 respirators, placing patients in negative-pressure rooms, and limiting room entry to essential personnel. This approach minimizes the risk of transmission of pathogens that can easily spread through the air, which is crucial for maintaining safety in healthcare environments.

In contrast, diseases transmitted through food, large respiratory droplets, or blood require different precautions, as their modes of transmission are not airborne. Understanding the specific transmission methods for various infections helps determine the appropriate levels of precaution, ultimately enhancing infection control.