Adequate ventilation

Hello, I am looking for a good ventilation system for home use. I
only need something for occasional soldering fumes. A nice small
unit I looked at was $500.00. That seems like a lot of money for
something I will only need once in a while. Can an open window and a
hepa filter suffice? If not, how much does an affordable unit cost
and where can one be obtained? Thanks all, Augest of Cry Baby Designs

There has been so much, written on this(archives) fan in window or in
an outside wall attached to sheetmetal duct, running to your
station(Graingers, Home Depot) or soldering station near window,
with box fan in it!!