(Today only) Home Depot offers the Air Innovations 1.1 Gal. Cool Mist Humidifier for $ 49.
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Features: Enjoy more comfortable, breathable air with the Air Innovations Cool Mist Humidifier, one of the top rated, longest running and most versatile humidifiers available for its size. Key features include a 1.1-gallon tank that runs for a full 70 hours on low – nearly 9 nights of sleep. Completely silent when running, its powerful design adds humidity to rooms up to 400 sq. ft. The entire unit and base are made of antimicrobial plastic to prevent bacteria, mold and mildew growth, while the permanent ceramic filter helps trap impurities in the water.