Bob, just a word of caution about fitting a more powerful extractor fan to your bob... er booth, the kitchen extractor fans (and those for use in paint booths) are modified to prevent electrical sparking, I think. I imagine a cloud of vaporised alcohol passing over a sparking electric motor could produce interesting effects "downstream" at the extractor duct exit, or in the confined area of the booth itself..... Bye-bye eyebrows and instant weathering of your charred Char!
