The air purifier BPi-TH21-070.1 is suitable for rooms up to 40 sqm and is supplied with electricity via a 220V connection. It has a housing made of maple, oak, walnut or wengé solid wood, oiled with ventilation slots so that the air can circulate through the housing. There is no fan installed, so the unit is almost silent. There is a slight tingling sound that resembles a carbonated drink. A 70mm ion tube is installed.
You can find more product details in the technical descriptions.