Humidifier emits a strong musty or moldy odor during operation.

Safety first: Turn OFF and unplug before cleaning. Avoid inhaling mold spores; consider wearing a mask.

• Disassemble and clean: Empty the tank and base. Wash all removable parts with mild dish soap and warm water. Rinse thoroughly.
• Disinfect: Fill the tank with a solution of 1 teaspoon of household bleach per gallon of water. Let sit for 20 minutes, then rinse until the bleach smell is gone.
• Replace wick: Replace the wicking filter if present; odors often persist in old wicks.
• Maintenance routine: Empty and dry the tank and base daily when in use, and perform a deep clean at least weekly to prevent regrowth.