In all my time as a coater. I've used perhaps 3 booths that were totally enclosed and filtered,etc. All the rest are "open" like you have described and draw in ambient unfiltered air past you, then into the booth. It's not really a huge deal unless you have a lot of stray things flying past you. Basically... you are making a powder coating "room". Much like a room set aside for just sandblasting, am I right? Like I said.... some places have that but it's not necessary in the hobbyist form (or even in most industrial forms, truth be known). I'd build a standard "booth" to coat in and keep the opening a good size where you stand and don't foresee any problems with that. The air coming past you won't be such a pressure or volume that it will pull the powder right off your part. Quite the contrary.... if your powder comes flying off, then something's wrong. If you want to slow the volume down because you feel it's excessive.... I've put a big square plate approx 3" in front of the hole for suction, this way the air gets slowed down yet still evacuates the chamber. What sisze parts are you planning on doing anyways? Just curious..... Russ
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