What is the minimum net airflow in CFM per linear foot required for a single island canopy hood used for heavy-duty cooking?

The minimum net airflow required for a single island canopy hood used for heavy-duty cooking is established based on the type of cooking operation it is intended to serve. Heavy-duty cooking typically involves equipment that generates significant amounts of heat, smoke, and grease, such as commercial fryers and griddles.

In such cases, a minimum airflow of 700 CFM per linear foot is necessary to effectively capture and exhaust the contaminants produced during cooking. This airflow rate helps in maintaining a safe working environment by preventing the buildup of heat and airborne grease, which can pose fire hazards and affect indoor air quality.

This standard is essential for compliance with local codes and regulations and ensures that the kitchen ventilation system operates efficiently during high-demand cooking, ensuring safety and comfort for kitchen staff. The requirement for 700 CFM reflects an understanding of the dynamics of kitchen environments and the need for adequate ventilation to control both thermal loads and airborne contaminants.