Panasonic F-VC50XJ-W Color: WHITE Ion type: Negative ion Humidification function: Yes Automatic operation: Yes Applicable floor area (by class): 20 tatami mats or more Dust collection filter replacement support: Yes Air volume/class 1: 5.1−6.0 cubic meters/min #Panasonic #Panasonic Color: White Type: Humidifying air purifier I cleaned the water tank regularly, so it's reasonably clean, but please understand that it has been used before purchasing.