Permanent Ceramic Filter - Never Needs Replaced</br>Anti-Microbial Tank & Base - Freshen your space with pure?? clean moisture</br>Runs Up To 70 Hours On One Tank</br>Designed to operate quietly for uninterrupted sleep</br>Variable mist settings?? Rotating mist nozzle?? and more!</br></br>Product Description</br></br><p>The Air Innovations model 408 ultrasonic?? cool mist?? humidifier is one of the top rated?? longest running?? and most versatile humidifiers available for its size.? Key Features:? 1.1 gallon tank that runs for a full 70 hrs on low (almost 9 nights of sleep) and is completely sil