So.....I'm a total newby and this forum has been a great resource. Rabbit Laser will deliver my 24x36 machine 8-16! I've read DC threads at some length but every situation is different and I'm not sure where I fit. To start I'll have a laser and Ray asked for a 6" fitting, similar to dryer vent and he will install to laser. I guess I'm asking how critical is this to the working environment? I'll have belt sander, etc, etc, and I know there will be some painting. Don't know if painting will be brush or spray at this point? Thus far I'm confused. I understand "clean room" thinking but will appreciate your input but don't understand to what degree it's necessary? Your input will be appreciated!!!!