Hood plenum and blower shall be cleaned a minimum of how often?

Hood plenum and blower shall be cleaned a minimum of how often?

• A. Annually
• B. Daily
• C. Once every 3 months
• D. Weekly

Answer: (C)

Regular maintenance of a kitchen exhaust system is essential because grease deposits in the hood plenum and blower can ignite and hinder airflow. Cleaning on a quarterly basis (every 3 months) provides a practical baseline to keep grease levels under control, maintain fire-suppression effectiveness, and preserve ventilation efficiency. This interval balances safety with practicality for typical operations. If a kitchen generates a lot of grease or runs at very high volumes, more frequent cleaning (monthly or even more often) may be required. Cleaning only once a year leaves grease to build up, increasing fire risk and reducing performance. Therefore, the quarterly interval is the standard, appropriate baseline for most facilities.

Regular maintenance of a kitchen exhaust system is essential because grease deposits in the hood plenum and blower can ignite and hinder airflow. Cleaning on a quarterly basis (every 3 months) provides a practical baseline to keep grease levels under control, maintain fire-suppression effectiveness, and preserve ventilation efficiency. This interval balances safety with practicality for typical operations. If a kitchen generates a lot of grease or runs at very high volumes, more frequent cleaning (monthly or even more often) may be required. Cleaning only once a year leaves grease to build up, increasing fire risk and reducing performance. Therefore, the quarterly interval is the standard, appropriate baseline for most facilities.