grease buildup in hoods
https://mygreasebuilduphoodspro.meridiannest.com/posts/the-hidden-fire-risk-of-grease-buildup-in-hoods-and-how-to-manage-it
That greasy film inside your kitchen hood isn't just unpleasant—it's a fire hazard waiting to happen. Over time, cooking vapors condense into a sticky, smelly buildup that clogs filters and reduces airflow. You'll notice it when your hood stops pulling smoke and steam effectively, leaving grease droplets on nearby surfaces. Regular cleaning, at least every few months, keeps your kitchen safe and your hood working properly.