For zone boosting, the required size relationship is ___ to the boosted zone.

For zone boosting, the required size relationship is ___ to the boosted zone.

• A. Greater than
• B. Greater than or equal to
• C. Less than
• D. Not more than

Answer: (B)

Zone boosting relies on pressurizing the target area by adding airflow from a source zone. For this to be effective, the zone providing the boost must be able to cover the entire boosted area. If the boosted zone were larger than the boosting capacity, you couldn’t maintain the required pressure and the airflow would fail to hold the zone, allowing unwanted air movement and contamination. Therefore, the size relationship must be that the boosting capability is greater than or equal to the boosted zone—the boosting zone should be at least as large as the zone being boosted.

Zone boosting relies on pressurizing the target area by adding airflow from a source zone. For this to be effective, the zone providing the boost must be able to cover the entire boosted area. If the boosted zone were larger than the boosting capacity, you couldn’t maintain the required pressure and the airflow would fail to hold the zone, allowing unwanted air movement and contamination. Therefore, the size relationship must be that the boosting capability is greater than or equal to the boosted zone—the boosting zone should be at least as large as the zone being boosted.