Permanent Ceramic Filter - Never Needs Replaced</br>Anti-Microbial Tank & Base - Freshen your space with pure?? clean moisture</br>Runs Up To 96 Hours On One Tank</br>Designed to operate quietly for uninterrupted sleep</br>5 mist settings?? Rotating mist nozzle?? Adjustable humidistat?? and more!</br></br>Product Description</br></br><p>The Air Innovations model 701B ultrasonic?? cool mist?? smart humidifier is one of the top rated?? longest running?? and most versatile humidifiers available for its size.? Key Features: 1.7-gallon tank that runs for a full 96 hrs. on low (12 nights of sleep) and is completely silent when running.? Powerful enough to add humidity to large and extra-large rooms up to 600 Sq. ft.?? with a programmable built in humidistat that monitors and maintains the humidity level you set.??? The entire unit and base are made of antimicrobial plastic to prevent bacteria?? mold?? and mildew growth and it comes with a permanent ceramic filter to help trap impurities in