The Bionaire Ultrasonic Humidifier helps improve air quality in your home by dispersing a cool, visible mist to counter dry air, especially during harsh winter months. It supports relief of cold and flu symptoms and may reduce static electricity, making interior spaces more comfortable for families. This model is designed for quiet operation, so it won’t disrupt sleep or conversation while adding humidity to a medium-sized room. Key benefits Filter-free operation simplifies maintenance and reduces part replacements. Whisper-quiet operation lets you run it overnight or during work hours without distraction. Ultrasonic mechanism produces a visible cool mist for easy monitoring of humidity levels. 3.79 L / 1 gallon tank capacity provides extended run time with up to 20 hours of operation. Automatic safety shut-off activates when the tank is empty to prevent damage and conserve energy. Empty tank light indicator helps you know when it’s time to refill. Adjustable humidistat offers precise control over room humidity with a simple turn. Designed for a medium room size of 200 sq ft to 400 sq ft, suitable for bedrooms and living spaces. Key components and how they benefit you Ultrasonic technology — creates a fine, cool mist that helps maintain comfortable humidity levels without heating the water. Large 3.79 L / 1 gallon tank — reduces frequent refills and keeps humidity steady throughout the day or night. Humidistat control — enables you to set your preferred humidity level for consistent comfort. Auto shut-off — protects the unit and preserves energy when the tank runs dry. Empty tank indicator — a practical alert so you won’t guess when a refill is needed. Usage tips and suitability Best for people seeking relief from dry air effects and for maintaining comfortable indoor humidity in spaces up to 400 square feet. For optimal performance, place the humidifier on a flat surface away from walls, keep it clean, and refer to the instruction manual for full warnings and disclaimers. If you have questions about safety or fit for your space, consult the manufacturer’s monograph or a health professional.
