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What are the requirements for non-sterile venting?

For the C-PEC (or hood), it can either be externally vented or vented back into the C-SEC (or room) via redundant (e.g., double) HEPA filtration. The room must be externally vented; the chapter defines “externally vented” as “exhausted to the outside of the building.”

API Active pharmaceutical ingredient
CACI Compounding aseptic containment isolator
C-PEC Containment primary engineering control
C-SEC Containment secondary engineering control
HD Hazardous drug
HEPA High-efficiency particulate air
NIOSH National Institute for Occupational Safety and Health
SOP Standard operating procedure


  1. US Pharmacopeial Convention. (2016). Frequently Asked Questions: <800> Hazardous Drugs—Handling in Healthcare Settings. Retrieved from http://www.usp.org/frequently-asked-questions/hazardous-drugs-handling-healthcare-settings