I have been offered a pharmacy fume hood for free, will it work for moving my operation inside? I am a hobbyist refining silver with Nitric Acid, a couple of kilo a month. right now, I do the silver outside and off gas the NO2 completely before precipitating the silver our of solution using copper bars. The issue I am havng is the size of this thing, 500lbs+ and it will take up a ton of room.