When cleaning under a hood, the recommended cleaning direction is to clean from top to bottom and front to back.

• A. True
• B. False
• C. Only top to bottom
• D. Only front to back

Answer: (A)

Starting at the top and moving downward minimizes recontamination because any loosened dirt or wash solution tends to drip or settle downward, so cleaning from the top prevents dirty material from landing on surfaces you’ve already cleaned. Cleaning from the front toward the back follows the hood’s typical airflow pattern and moves debris away from your hands and the front edge where you work, guiding contaminants toward the back exhaust. This top-to-bottom, front-to-back sequence embodies a clean-to-dirty approach and helps keep the work area as sterile as possible.