High quality extractors / inductors with flow rates from 175 to 1675 cubic meters. These are the quietest on the market and the most powerful. Suitable also to connect to a fan-controller to regulate the fan speed. For a space of 175 m3, we use the 125 A1 (29 Watt) with a maximum air displacement of 220 m3/h. Let us know if you need a heavier one for your space. We can supply you with the following m3/h: 184, 220, 323, 482, 720, 796, 860, 1008, 1080, 1361