For suspected airborne disease exposure such as tuberculosis, which PPE is recommended?

• A. HEPA mask or N-95 respirator
• B. Surgical mask only
• C. No mask
• D. Cloth mask

Answer: (A)

Airborne pathogens require filtration of small particles and a tight seal to the face. Tuberculosis spreads through aerosols that can linger in the air, so protection must come from a respirator that filters fine particles and fits well. A surgical mask or cloth mask only blocks larger droplets or provides loose protection, which isn’t adequate for airborne transmission. A respirator such as an N-95 (or a higher-grade HEPA-style option) delivers the necessary filtration when it is properly fit-tested and worn with eye protection. In practice, use of a properly fitted respirator is essential for suspected airborne exposure, with additional precautions as needed.