It is true rather the latter. Small rooms ventilated the fan without any problems by beautiful. But he is not really silent.
already at level one should I put my TV a little louder than usual. So loud that it disturbs but it is not yet. One must however always be clear that it is in a very favorable fan here. More can not be expected in this price range simply.
The processing seems to be very stable. Unfortunately, the angle of the fan set very stiff. You really need 2 hands, because the fan rather overturn before rotating the thread. This could have been done easily. In addition, the arrangement of the shift stages is not quite logical: 0 III II I. Why not 0-I-II-III? The need is only a small thing, but it's kind of weird getting on the levels 2 and 3 go to the fan off (because the first stage absolutely sufficient. Higher I just use the space times quickly ventilate). Both are very small flaw, but the reason for only 4 instead of 5 stars to forgive.
Conclusion:
The fan keeps not quite what it promises. Quietly, he is not, turbo is certainly correct in size. In this price range you can apart from the stiff angle adjustment and illogical switching stage arrangement really find fault with anything. Who wants to ventilate a room good and cheap, and does not necessarily require a design object, can strike without hesitation here.
