Just to let you know, Glowforge is offering a Compact Filter that is ready now (I believe) and it works fine to filter the smells from the laser. (I’ve been testing one and there is no smell when it’s running. Many people have received them now.)
You can get more information on the Compact Filter and sign up for it here:
Should you decide you want one of these instead of waiting for the Glowforge filter unit, you should be sure to mention it in your emails to Support, and list it somewhere on the sign up sheet that you want to schedule your Glowforge delivery too, so they can try to coordinate the arrival with your Glowforge.