Helios M1 / 100 P mini fan 6174 Helios Minvent Helios room fan in white with two-stage presence detector, DN 100. MiniVent M1 small fan, with 2 power levels (90/75 m³ / h) and presence detector. Follow-up time approx. 6 minutes, the electronic function can be set to either the high or low power level. With its excellent design, MiniVent M 2000 anywhere - even in rooms with a sophisticated design. The closed, elegant facade completely avoids looking into the dirty fan opening. Equipped as standard with tightly closing return air shut-off flap. Thanks to the new ultraSilence technology, the noise level is 25 dB ( A ) at 75 m³ / h volume flow. Universally applicable for the Lüftung of Bathroom , WC and other small rooms.