What is the proper PPE for airborne precautions, such as those required for tuberculosis?

The appropriate personal protective equipment (PPE) for airborne precautions, particularly in the context of tuberculosis (TB), includes a respirator, such as an N95 mask, in conjunction with care provided in a negative pressure room. The reason for using a respirator is that it is specifically designed to filter out airborne particles, including the small droplet nuclei that can be generated when a person with TB coughs or sneezes. This type of mask provides a tight fit and is considerably more effective than standard surgical masks in preventing the inhalation of infectious agents.

The negative pressure environment is also critical because it helps to contain the airborne pathogens within the room, preventing their escape into other areas of the healthcare facility. This two-pronged approach—using a respirator and ensuring a negative pressure environment—ensures maximum protection for healthcare workers and safeguards the overall safety within the facility.

Other options do not provide the necessary level of protection required for airborne diseases such as TB. A surgical mask is insufficient as it does not filter out the smaller particles that the tuberculosis bacteria can travel in. Gloves and gowns are important for contact precautions but are not relevant for airborne transmission. Preventive antiviral medication is a therapeutic approach, not a form of PPE, thus it does not