I purchased this from Nitori last year. I bought it planning to use it this year, but I no longer need it, so I'm selling it. Since it's unopened, I haven't checked the operation. For a 6-tatami mat Western-style room Ultrasonic humidifier This digital humidifier can operate for up to 12 hours and is aroma-compatible, providing a comfortable space. - Type: Humidifier - Water tank capacity: 2.5L - Operating time: Up to 12 hours - Features: Aroma compatible - Design: White Can be filled with water without opening the lid Easy to clean tank Thank you for looking.