As many here mostly complain about the volume in their recessions ... this I can say that the device at level 1 (still) operates extremely quiet and no distractions. This in my opinion, already produces a lot of air emitted indirectly generates a sufficient and pleasant airflow. Have tried this in the bedroom and I could still keep an eye at rest TV and then sleep well without I found the sound of the wind machine as disturbing. Here, the unit consumes about 29W power.
In stage 2 of Luftsrom is already much stronger and also the volume increases somewhat, with a mild to clearly audible hum of the engine. Whereby this volume is still within the range of tolerable. This level should be sufficient also to really warm days, although I unfortunately could not try this year because of the summer is probably over. But I am confident that the device is then certainly serve you well in the next year to me.
In the third stage, the unit then developed an enormous wind force, which should be sufficient to wirkeln through the air in any normal-sized room, and to ensure a good air exchange. The hum of the engine can now be clearly heard (alledings in a more pleasant frequency range) and the air turbulence of the propeller contributes to a further increase in volume in. Actually, this step is likely to be required wind hardly, but who needs it ...
Who by the way it thinks, to reduce the power of the device by means of a controllable current connector, should reject this idea quickly. Have destroyed me so within one day the engine of another fan. Had it tried with the Arendo wind machine shortly. However, the engine developed this once very unhealthy sounding Fiepgeräusche, so I've omitted a current regulation by switches.
