- Visible grease buildup
One of the most apparent signs that your kitchen exhaust hood is due for cleaning is the presence of visible grease buildup. If you notice a thick layer of grease coating the interior surfaces of the hood, filters, or ductwork, it’s a clear indication that the system is not effectively capturing and removing grease.
This buildup not only compromises the hood’s efficiency but also poses a fire hazard, as grease is highly flammable. Regular visual inspections can help identify this issue early on, prompting timely cleaning to prevent potential risks.