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Can anyone tell me how to calculate the # of CFM of a squirrel cage motor that is needed to adequately move air based on the cubic feet of a wood shop?
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air cleaning requirements
507 posts in 2703 days
#1 posted 09-08-2009 07:00 AM
That’s pretty easy, if you know the cubic feet of your shop (sq. feet * ceiling height) just figure out how often you want the air recycled. If your shop is 1000 cu.ft. and you want the air cycled twice/minute, you’d need a 2000CFM motor.
That’s a bit of a generalization, but close enough for wood shop purposes.
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1610 posts in 2930 days
#2 posted 09-08-2009 07:03 AM
Cubic foot volume of shop Number of air changes per hour Cubic feet per min(cfm) air(length x width x height) in feet X (6 hobby use, 8 full use) movement capacity of air ————————————————————————————————————————————————————— = filtration device
60( division necessary to convert cubic feet per hour to cubic feet per min(cfm)
Taken from Woodshop dust Control by Sandor Nagyszalanczy
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