The BPA-free Crane Ultrasonic Cool Mist Humidifier provides up to 24 hrs of moisture on medium setting from its removable 1 gallon water tank. Suitable for rooms up to 250 sq. ft. in size, this compact unit is energy efficient & uses ultrasonic technology to add soothing moisture to the air. Crane"s cool mist humidifier provides a non-medicated relief for dry cough, nasal congestion & cold & flu symptoms. Crane humidifiers are a great gift for baby showers, birthdays & holiday season. It does not require a filter to operate. Relief from Cold & Flu Symptoms, Award-Winning Design When children have stuffy noses and congestion, it"s difficult for any parent to hear them struggle to breathe. The humidifier releases up to 2.1 gallons of moisture into the air per day to soothe nasal passages and dry coughs so children can breathe easier and sleep peacefully at night. Straightforward, Whisper-Quiet Operation Crane"s design complements any children"s bedroom decor. Not only are Crane humidifiers adorable, but they are also easy to use, & include a built-in auto-shut-off feature that engages when water tank is empty to ensure safety. Plus, they require less power than a standard light bulb. The whisper-quiet operation helps provide for a good night sleep for everyone. Operating the humidifier requires only a few easy steps. Simply remove the water tank from the unit, unscrew the tank cap, & fill the one-gallon water tank under a water faucet. Securely replace the tank cap, making sure the rubber cap seal is in place, & place the water tank back onto the unit. Place the humidifier on an elevated surface and set it to a medium output setting for comfortable room humidification. Bonus - 1 Yr. Parents Magazine Subscription Coupon Free one-year (12 issues) subscription coupon to Parents Magazine included in packaging.