When cleaning instrumentation, what procedure helps avoid aerosols?

The procedure that helps avoid aerosols is scrubbing items below the water level. This technique is critical because it minimizes the risk of generating aerosols – small droplets that can become airborne during the cleaning process. When scrubbing items above the water's surface, there is a higher chance of splashing or creating fine mist, which could potentially carry contaminants into the air and into the environment.

By keeping the items submerged while scrubbing, the action is contained within the water, significantly reducing the likelihood of aerosols being created. This is particularly important in maintaining a safe and sterile environment within a medical or surgical facility, where airborne pathogens pose a risk to both patients and staff.

The other choices, while being important cleaning methods, may lead to aerosol generation or do not directly address the concern. For example, soaking items in disinfectant may not actively remove debris and could still allow for the formation of aerosols if the water level is not managed properly, whereas using high-pressure sprays can definitely create aerosols, and wiping with dry cloths does not involve proper cleaning of instruments in terms of eliminating biofilm or debris.