Daikin DAIKIN MCK55P-W [Humidifying Air Purifier with High Speed Streamer (Humidification up to 14 tatami mats: Air purification up to 25 tatami mats) White] Operation confirmed. The main unit has some discoloration, and the fastener on the lower left side is detached. Please understand this beforehand. Color: White Ion type: Negative ions Humidification function: Yes Automatic operation: Yes Applicable floor area class: 20 tatami mats or more Dust collection filter replacement support: Yes Air volume/Class 1: 5.1-6.0 cubic meters/min