Question about Duux DXCF11 WhisperFlex

I can't say how few dB it actually is, but the fact is that the thing works practically silently. Best Venti purchase ever.

I haven't checked, but it really is quiet. I can sleep very comfortably at level 9 or 10 and still have enough cold air. Definitely recommended for bedrooms. It's a bit too narrow for a living room.

I don't know how many dB the appliance has, but the fan is still quiet at the highest setting.

Unfortunately I don't have a measuring device, but I've often woken up at night and thought it was raining when it was just the fan.
And I think it's brilliant that it oscillates both horizontally and vertically. If you are always exposed to the same draught, you quickly catch a cold, but that's not the case here.

Yes very quiet up to the 10 voice. Between 11 and 20 I measured about 20 dB,

Hardly, at least at max level, I don't think so. But it's actually the quietest valve I've ever had.

Not measured. But it really is extremely quiet. I am very satisfied with the product.

Very quiet, extremely efficient and controllable via smartphone