Pure Enrichment MistAire Studio Ultrasonic Cool Mist Humidifier for Small Rooms - Portable Humidifying Unit Ideal for Office with High and Low Mist Settings, Optional Night Light and Auto Shut-OffPowerful Humidification The . 7 liter (34 fl. oz.) tank means fewer refills as it lasts up to 10 hours on a single tank. Runs up to 7 hours on high Runs up to 10 hours on low Run time may vary depending on water quality, room temperature, and the amount of water in the tank Whisper Quiet Operation Creates a calming atmosphere helping you get to sleep and runs quietly enough for a nursery or bedroom. Great for Indoor Plants Keep houseplants healthy and