Quietly moves plenty of air.
Installed this fan into a new window in the bathroom of an old brick flat to break a mould problem. So far the fan works very efficiently at clearing out the moisture of the bathroom, it moves plenty of air.
The fan looks good, although the bulk of the working parts are on the inside. Backdraft shutters are good and close fairly tight, but take a while to open and close. Fan runs quieter than expected.
The optional weather cap was very expensive for what is essentially a piece of plastic held together with cheap screws.