Humidifier leaves white dust on nearby furniture.

Safety: Turn off and unplug the humidifier before servicing.

Steps:

• Change water type: Use distilled or demineralized water instead of hard tap water.
• Install filter: If your Argo model supports it, install or replace the Argo demineralization cartridge in the tank.
• Clean surfaces: Wipe affected furniture and surfaces with a damp cloth to remove existing dust.
• Maintenance: Replace the demineralization cartridge at the interval recommended by Argo, especially in hard-water areas.