[Closed] Bathroom extractor fans which don't sound like a small jet engine...

Probably the duct making the wind noise rather than the fan, unless they are old and with knackered bearings.

I put something like the below in when ours packed up last year.

http://www.screwfix.com/p/manrose-in-line-centrifugal-shower-fan-kit-chrome-100mm/41379

As mentioned above it is likely the ducting that has holes / gaps in if you are getting an air rush type sound.

14dBA is not possible though, more likely 41 - which even then is as quiet as a very quiet room.

If you want to make it even quieter you could decouple the fan motor from whatever it is mounted to. A couple of squash balls cut in half and glued not screwed on would do it, although this is a massive overkill.

Insulted ducting makes a big difference to the extraction efficiency preventing the steam turning to water for longer. It also isolates the air noise taking the high frequency out of it.
I got a Manrose MF100, which is around twice the output of the one linked in the Screwfix link, through an eBay trader with insulated ducting for around £70

I got this one not long ago

http://www.amazon.co.uk/gp/product/B007T5RONK

it's pretty quiet. Though as others have said, the duct also matters.

have you checked the mount/ing

we had an aircraft one in our loo, the electrician simply bolted it properly to something solid - fixed

I used an inline fan, placed in the loft away from the bathroom.

You can't hear the fan at all as all there is in the bathroom itself is the end of the ducting with a cover placed in the ceiling.

Works just as effectively as one with the fan unit placed in the bathroom ceiling.

Screwfix had a demo fan on the trade counter recently that was nearly silent.

Not sure if it was this one or something else but worth a look. Rigid pipe would help as well if you can.