What type of cooking appliances produce grease and smoke requiring Type I hoods?

Type I hoods are specifically designed to handle cooking appliances that produce grease and smoke as a result of their operation. Medium-duty cooking appliances typically include those that generate a moderate level of both grease and smoke, such as fryers, griddles, and grills. These appliances require a Type I hood to effectively capture and ventilate the airborne contaminants they produce to ensure safety and compliance with building and health codes.

In contrast, other types of cooking appliances classified as low-duty or light-duty usually emit minimal grease and smoke, and therefore do not require the more intensive ventilation systems that Type I hoods provide. High-duty appliances can produce more intense cooking effluent but are generally categorized differently based on their operational intensity rather than just grease and smoke output alone. This distinction is crucial to maintain proper ventilation and fire safety in commercial kitchens.