I am looking for a fume extractor for a DIY 80w laser I just built, pretty large bed 2ft x 4ft so i'm not sure of how much extraction i would need in CFM for something like that, I've seen a few units on Ebay such as the Domino DPX1000 but not sure if that would be sufficient, anybody experienced with that particular unit ? maybe DIY solutions as well that may be efficient, most of the ones I've found were for scrubbers, so the air would still have to be blown outside, i'm looking for something to keep in my shop that wouldn't vent out. Budget wise maybe around $1500 (ebay unit was 800 without filters)