Humidifier leaves white dust on nearby surfaces.

Safety: Turn off and unplug the humidifier before servicing.

• Switch water source: Use distilled or demineralized water instead of hard tap water.
• Install cartridge: If your Klarstein model supports it, install a demineralization or anti-limescale cartridge in the tank.
• Replace cartridge: If already installed, replace the cartridge according to the manufacturer’s interval or sooner if heavy dust is observed.
• Clean room surfaces: Wipe affected surfaces with a damp cloth to remove existing mineral dust.