To get rid of the strong smell of burnination from laser engraving in my small basement office slash mad scientist laboratory, I decided to see what the house’s built-in vacuum system would do. My laser is just a little Creality attachment on my old Ender 3 printer, but the tiny fan and also tiny carbon filter don’t do much about the smell.
As a test I positioned the vacuum hose about six inches behind where the laser’s tiny fan blows out. This actually works way better than I expected - there’s hardly any smell now. Not a permanent solution, and I wouldn’t use it for 3d printing because the vacuum shouldn’t run for hours on end, but for 15-minute engravings it seems like a great workaround until I can setup more elaborate air extraction.