Cooking exhaust hood ventilation system

A commercial cooking equipment exhaust system, comprising:

• at least one filter unit positioned along an exhaust flow path;
• a UV light source downstream of the at least one filter unit;
• a controller operatively connected to control a power level of the UV light source, the controller configured to control the power level based upon at least one monitored exhaust condition;
• wherein the controller is configured to (a) increase the power level of the UV light source in response to an increase in the monitored exhaust condition and (b) decrease the power level of the UV light source in response to a decrease in the monitored exhaust condition.

A commercial cooking equipment exhaust hood system, comprising:

• a hood structure including a front side, a rear side, and first and second lateral sides running from the front side to the rear side, wherein the hood structure includes a rear section toward the rear side and a front section toward the front side, wherein an inlet opening to the hood structure is located in the rear section;
• at least one filter unit positioned in the rear section of the hood structure such that exhaust gases moving up into the inlet opening pass through the at least one filter unit;
• wherein the rear section of the hood structure includes a plenum above the at least one filter unit for receiving exhaust gases that pass through the at least one filter unit;
• at least one filtration device located in the front section of the hood structure;
• a duct structure extending in a forward direction from the rear section to the front section, the duct structure located toward the first lateral side of the hood structure;
• wherein exhaust gases from the plenum move in the forward direction along the duct structure into the front section of the hood structure and then in a lateral direction through the at least one filtration device, wherein the lateral direction extends from the first lateral side toward the second lateral side.