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Old 2013-05-12, 9:35pm
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AmorphousDesigns AmorphousDesigns is offline
Join Date: Aug 09, 2010
Location: land of milk & honey
Posts: 1,104

As my bench is up against a wall I prefer to have back and sides. IMHO the back acts as a heat shield for the wall and the sides help "contain" the vacuum created by the fan so that most of the air sucked up by the fan is coming from the front area, where my head is.

That being said if I worked in the middle of the room I would just go for a hanging hood with a stronger fan and forgo the back and sides, on the idea that there is no "blowback" of the fumes as there is no back wall.

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