In article ,
Andrew wrote:

Has anyone any experience of them? Good/Bad? It is one of the only
angled hoods that I can find that has a vent at the rear rather than
needing a chimney to vent up and out.

Prompted by another thread on here yesterday, I had a look: expensive!

However I was very interested to see their "downdraft" fans -- couldn't
make out what the heck that might be at first, but on delving, it seems
like a good idea!

(No good in answer to your question Andrew - sorry)

John