I used it by connecting it to aluminum flexible hose, but the wind volume was small and the model selection was wrong. I did not know even the existence of a small built-in type, so I gained harvest. We plan to order a model that is 5 to 6 times the air volume again.
The exhaust fan of the controller of NC was broken and the operation became wrong, so I bought a fan of the same model suddenly. I decided to make a connector for the connection, but I was able to exchange it easily on arrival, so it was very helpful. This seems to be usable for a while.