I'm having a sort-out and found an old extractor fan - free to any one who could use it (near Northampton probably, as it's a bit big).
It's a Vent-Axia, 9", 3-speed, reversible, with controller. At present it's mounted in an aluminium plate of 441mmx344mm. It's rather dirty and probably the bearings would need cleaning and lubricating (last done >20ya). It was in use in the kitchen until the DG was fitted in '91.
Could be OK for a workshop etc.; perhaps a bit crude for a kitchen (wasn't for mine!).
e-mail's valid after removing the obvious bits.