There have been lots of posts about venting properly to avoid any smells from the unit. Do a search on ‘vent’ to start.
Here’s a couple that should get you in the right direction:
https://community.glowforge.com/t/post-print-smoke-smell/16431?source_topic_id=18809 https://community.glowforge.com/t/venting-tracking-down-leaks-continued/14888?source_topic_id=18809