Humidifier emits a strong musty or moldy odor during operation.

Safety: Unplug the unit before cleaning. Avoid inhaling cleaning chemicals.

• Empty and rinse: Empty the tank and base reservoir completely. Rinse with warm water.
• Deep clean: Fill the tank with a mixture of water and white vinegar (or manufacturer-approved cleaner). Let it sit for 30–60 minutes, then scrub all surfaces with a soft brush.
• Clean base: Wipe the base reservoir with the same solution, paying attention to corners and seams.
• Replace filters: If your Rowenta model uses a wick or antibacterial cartridge, replace it according to the manual.
• Dry thoroughly: Allow all parts to air dry before reassembly.
• Prevent recurrence: Use fresh water daily and perform a full cleaning at least weekly during heavy use.