This is the BONECO Disc-Type Evaporative Humidifier 2055N. How about preparing for the dry winter? I've been using it, so there's some limescale, but I've cleaned it as thoroughly as possible. Newer models are available, but I think the performance and ease of use of this one are exceptional. We don't have any pets or smokers in our home, so it was used in a clean environment. Power has also been confirmed. A BONECO stand-type humidifier with a simple design, easily adjustable with a dial. - Brand: BONECO - Type: Stand-type humidifier - Humidification Type: Evaporative - Color: White - Features: Dial adjustment - Design: Simple appearance Thank you for looking.