What is the main function of high-efficiency particulate air (HEPA) filters?

The primary function of high-efficiency particulate air (HEPA) filters is to remove airborne particles, including microorganisms, from the air in compounding areas. HEPA filters are designed to capture particles that are 0.3 micrometers in size and larger with an efficiency of at least 99.97%. This capability is critical in environments like sterile compounding areas, where maintaining a clean and contaminant-free atmosphere is essential to ensure patient safety and the integrity of compounded sterile preparations.

By effectively filtering out these particulates, HEPA filters help to reduce the risk of contamination during the preparation of sterile products, making them indispensable in pharmaceutical and healthcare settings where sterility is paramount.