What should be controlled to prevent cross-contamination between the work area and unaffected areas?

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Controlling air pressure is essential in preventing cross-contamination between the work area and unaffected areas. By maintaining a negative pressure in the work area, any air that may contain contaminants or particulate matter will be drawn into the area rather than pushed out into surrounding zones. This practice helps to contain odors, allergens, and hazardous materials within the designated worksite, thereby minimizing the risk of spreading contaminants to clean areas.

Air pressure management is an integral part of establishing a controlled environment during trauma and crime scene clean-up. It allows technicians to work safely and effectively without compromising the integrity of unaffected locations.

While factors such as temperature and humidity levels may have an impact on the conditions during a clean-up operation, they are not directly responsible for preventing physical contaminants from moving between areas. Similarly, managing traffic flow is important for safety and operational efficiency but does not specifically address the issue of air-borne contaminants spreading. Thus, controlling air pressure remains the most effective means to ensure cross-contamination is minimized.

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