Bathroom Exhaust Fan Not Pulling Air — Hilversum, North Holland

Your bathroom exhaust fan runs but doesn't clear steam or odors — a tissue held against the grille barely moves or falls away. Common causes include a clogged or crushed duct run, a stuck backdraft damper, a motor spinning too slowly due to worn bearings, or a duct that was never actually connected to an exterior vent (more common than you'd expect in older homes). An electrician experienced with ventilation can inspect the fan motor, verify cfm output with an anemometer, check the duct for kinks or blockages, and ensure the run terminates correctly through the roof or soffit — not into the attic, which causes moisture damage and mold.