What is a secondary decon and why is it important?

• A. A second decon that replaces gross decon.
• B. A second decon step used for equipment only.
• C. A second decon pass to remove residual contamination after gross decon and reduce secondary exposure.
• D. A quick rinse that completes decon without soap.

Answer: (C)

Secondary decon is a follow-up cleaning step that comes after the initial gross decontamination. Its job is to pick up any residual contamination that the first wash left behind, focusing on PPE, equipment, and surfaces so that these remnants don’t get carried into clean areas or cause secondary exposure during doffing or handling of contaminated items. It’s a more thorough, targeted cleaning—often using appropriate decon agents and additional scrubbing, rinsing, or wiping—to ensure contaminants are truly removed and the risk of secondary exposure is minimized.

This is why it’s the best description: it emphasizes the sequencing (after gross decon), the aim (remove residual contamination), and the purpose (reduce secondary exposure). It isn’t a replacement for gross decon, it isn’t limited to equipment only, and it isn’t merely a quick rinse.