Humidifier produces an unpleasant plastic or chemical smell when new.

Safety: Ensure good room ventilation when first operating a new unit.

• Initial cleaning: Rinse the tank and water chamber with warm water and mild detergent, then rinse thoroughly.
• Run-in period: Operate the humidifier on maximum output in a well-ventilated room for several hours to dissipate odors.
• Check for overheating: If the smell is accompanied by visible smoke or excessive heat, unplug immediately and inspect for electrical faults.