I know many of us also own/use 3D printers. I thought you might be interested in this article about possibly harmful emissions from said printers.
Personally, my printer has been in an enclosure from day one. It is vented via a 4” clothes dryer hose through a window in my garage door. I will be investigating positive flow/filter options to upgrade my system.
Link to original article referencing the link above: https://www.zdnet.com/article/volatile-compounds-3d-printing-has-a-serious-safety-problem/