Patent ID: 11964890
Assignee: BIOTERIA TECHNOLOGIES AB
Field: Environmental technology (Chemistry)
Classification: CPC C  F  B  Y | IPC C

Claim 0:
1. A ventilation system comprising ventilation ducts, a control system and a plurality of spray nozzles, wherein each of said plurality of spray nozzles is configured to spray a liquid mist onto at least one portion of an inner surface of the ventilation system, and wherein said liquid mist is containing a culture of microorganisms adapted for biologically treating fat, oil and grease present on different portions of the inner surface of the ventilation system, thereby providing for partial biodegradation of the fat, oil and grease present on the different portions of the inner surfaces of the ventilation system, wherein the ventilation system comprises at least one camera and/or microphone configured to obtain image and/or audio data for estimating, by the control system, the amount of accumulated fat, oil and grease on the different portions of the inner surface, and wherein said ventilation system comprises a plurality of spray nozzles directed toward different portions of the inner surface of the ventilation system, and wherein said control system is further configured to control the plurality of spray nozzles so that different amounts of liquid mist is sprayed onto the different portions of the inner surfaces based on estimated, by the control system, different amounts of accumulated fat, oil and grease present on the different inner surfaces.