How do you stop a bathroom exhaust fan from being loud and still remove moisture

title: 'Why Is the Bathroom Fan Making High-Pitched Noises?| Mr. Rooter®'

To quiet a noisy bathroom fan, start by turning off the power and cleaning the blades, housing, and motor assembly with warm soapy water or an old toothbrush to remove dust buildup^[3]^[5]. Check that the fan is properly aligned, tighten any loose mounting screws, and ensure the blades are not hitting the housing^[3]. If the noise persists, inspect the ductwork for sharp turns or small sizing, as these can force the fan to work too hard^[3].

If the motor is failing or the unit is an older, low-quality model, replacing the entire fan is often the most effective solution^[5]. When choosing a new unit, match the Cubic Feet per Minute (CFM) rating to your bathroom size to ensure proper ventilation without overworking the motor^[2].

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