NFPA 96 guidelines 2

https://getcommercialkitchenfireworks.greyhavendaily.com/posts/commercial-kitchen-fire-safety-why-bare-metal-matters-for-your-exhaust-system

NFPA 96 guidelines set the standard for commercial kitchen ventilation to prevent grease fires. They cover everything from hood design and duct installation to cleaning schedules. Following these rules keeps restaurants safe and compliant with fire codes.