Ikea's cooker hood solution, with the recirculation mode solution, typically comes with the NYTTIG TUB 150 (150mm diameter pipe). However, a cover for this is not offered.

My solution can simply be plugged in and cannot be closed accidentally.

Suitable for Underverk, Utdrag and more.
Also fits all other 150mm tubes.

Print it how ever you want - no supports

I printed it with 0.24mm layers and PLA (maybe PETG is more durable here, but I haven't had any problems so far.