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for URPOWER MH501 Humidifier, 5L Large Capacity Whisper-Quiet Operation Cool It does include an eight page owner's manual for your reading pleasure. It does require cleaning after awhile and couldn't get it to work after I cleaned it the last time. It lasted about 4 years maybe. I will use it a lot. Verified Buy URPOWER MH501 Humidifier, 5L Large Capacity Whisper-Quiet Operation Cool Mist Ultrasonic Humidifier Waterless Auto Shut-Off with Adjustable Mist Mode