Humidifier produces white dust on nearby surfaces.

Steps to reduce white dust:

• Switch to distilled water: Use distilled or demineralized water in the humidifier tank to greatly reduce mineral output.
• Clean unit regularly: Clean the tank and ultrasonic transducer weekly to remove mineral buildup.
• Use demineralization cartridges (if available): Install Pro Breeze-compatible demineralization cartridges or filters if your model supports them.