Homedics humidifier makes loud buzzing or rattling noises during operation.

Safety: Unplug the unit before inspecting moving parts.

Noise reduction steps:

• Reposition unit: Place the humidifier on a flat, solid surface. Avoid hollow tables that amplify vibration.
• Check for debris: Inspect the fan area and mist outlet for foreign objects or loose parts. Remove any debris.
• Tighten components: Open the housing and gently tighten any loose screws around the fan motor and transducer mount.
• Clean transducer: Remove scale from the ultrasonic disc to reduce buzzing caused by uneven vibration.
• Replace worn parts: If the fan motor bearings are noisy, replace the Homedics fan motor.