What is the cycle duration for the decontamination process?

• A. 15 minutes
• B. 60 minutes
• C. 45 minutes
• D. 30 minutes

Answer: (D)

The main concept here is dwell time—the amount of time the decontaminant must stay in contact with surfaces to effectively kill or inactivate contaminants. The best answer, 30 minutes, reflects the validated contact time set by the SOG for this decontamination cycle. This duration ensures the disinfectant has enough time to work on all surfaces and materials involved, including PPE and equipment, while keeping the process efficient for operational use.

If the time were shorter, like 15 minutes, there’s a higher risk that the disinfectant hasn’t achieved the required kill on all contaminants. If it were longer, such as 45 or 60 minutes, it would unnecessarily delay subsequent steps and use more resources without additional benefit on this guideline. Following the specified 30-minute cycle provides the proper balance between efficacy and workflow.