everyone how use an laser knows the problem....
youre komplete home is full with smoke after a few seconds
here is an simple mount for an 40mm high power dual fan
you can connect two 21mm tubes one for extraction and one transports the fumes outside your room just hang the tube outside your window
and one other positive thing is your laser dont get dirty by fumes

necesary: print it with 3 perimeters and min 60% infill