EE-5302W Filter-free ultrasonic. Helps improve moisture for coughs, sinus irritation & other effects caused by dry air. 360 degrees mist nozzle. Vapor tray, half gallon tank, 15 hour run time, whisper quiet. Clean control anti-microbial function. Happy, healthy humidity. Use with optional HS-1950 vapor pad (sample pad included). Three output settings are perfect for any space. 360 degrees mist nozzle directs humidity. Half gallon tank 15 hours, easy to clean. Anti-microbial function proven to help reduce mold and bacteria growth up to 99.96% in the humidifier base. No filter required. Optional demineralization filter available. Whisper quiet mist runs whisper quiet for a good night's sleep. Tank capacity half gallon runs up to 15 hours, perfect for medium sized rooms. Room size ideal output for medium sized rooms. Control lights dim after 10 seconds. This is a humidifier - not a toy. EMSL Test Report 151305654. Reduction of mold and bacteria Is based on independent laboratory testing EMSL report 151305654 results are based on the reduction of the bacteria In the humidifier base with Clean Control material. during continuous use. The humidifier base showed o reduction rate up to 99.96% of Gram Negative - Pseudomonas Aeruginosa after 8 hours. ETL listed - Intertek. www.crane-usa.com. Bonus! Included with your purchase is a one-year subscription to Martha stewart Living. U.S. Residents only. A. $6.00 value. See inside for subscription & refund details. Please recycle this box. FDA Registered. Made in China.