10/14/2026
Bathroom exhaust fan covers quietly collect more sticky grime in October than almost any other spot in the house.
Hotter morning showers paired with cold outside air create constant condensation along those ceiling vents. Damp steam mixes with fine dust, forming a thick, gray paste that chokes the motor. Once airflow drops, moisture hangs on walls twice as long, creating the exact conditions where dark mildew starts creeping across bathroom ceilings.
Popping that plastic vent cover off and washing it in warm dish soap takes five minutes. It immediately restores strong airflow and keeps moisture from soaking your drywall all fall.
When was the last time you pulled down your bathroom exhaust cover to check inside?