In Which of the Following Would a High-Efficiency Particulate Air

Question

In which of the following would a high-efficiency particulate air filter (HEPA)be used?
A)To clean the air entering operating theatres.
B)In laboratory biosafety cabinets to remove microbes from exhaust air.
C)To trap pathogens in exhaust systems from isolation units.
D)In respiratory masks.
E)All of the above.

Accepted Answer

HEPA filters are widely used in various settings to remove particles of a certain size range from the air. In operating theatres, HEPA filters are used to maintain a sterile environment by removing airborne bacteria and other contaminants. Biosafety cabinets in laboratories also use HEPA filters to prevent the release of microbes into the environment. Isolation units with exhaust systems use HEPA filters to trap pathogens before releasing air outside. Respiratory masks also use HEPA filters to protect the wearer from harmful particles. Therefore, options A, B, C, and D are all correct, leading to the best answer of E.