Extractor fan adapter

Adapter to attach vacuum cleaner hose on to a kitchen extractor fan to use as movable extractor hose when soldering, 3D printing ABS etc.

Knobs are glued on to the hooks after installing them on the hole in the extractor adapter.

To install the adapter on a kitchen extractor filter the hooks need to be aligned to fit on the holes of the filter grid. After installing knobs need to be turned around to catch the edges of the filter grid.