An adapter to connect a hose to the printer to vent harmful fumes. There is space for a fan, which can be powered via the printer’s USB port. Four holes are provided for using M3 heat-set inserts to securely attach the adapter. The adapter is designed for a hose with a diameter of 80mm.
Amazon Links:
https://www.amazon.de/gp/product/B078GT377D/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1
USB-Fan (60mm Version)
https://www.amazon.de/gp/product/B0BHNX7648/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1
The author marked this model as their own original creation.