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fresh air requirement per EPA
=1/2 air echange per hr.? SO= 25x40x8 space=8000 cubic feet & 1/2 = 4000?
4000/ 60 min. = 66.6 cfm effective ventilation?
4000/ 60 min. = 66.6 cfm effective ventilation?
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Comments
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Your math is correct, but
EPA? I have never used the EPA as a standard of ventilation, not to say that you do not have a specific application such as radon mitigation.
But I do not know, so may I back up a bit and ask a question?
What is the application you are ventilating and is it to a code you are adhering such as the IMC? Or ASHRAE 62? (62.1 or 62.2 depending on commercial vs. residential)? Often the standards I apply are expressed as a certain fairly low cfm per SF value plus a specific CFM per Person value, added together. Very few spaces have a direct ACH rate anymore. So, to be of best help, I just wanted to ask."If you do not know the answer, say, "I do not know the answer", and you will be correct!"
-Ernie White, my Dad0 -
luckily
I SMOKE CIGS IF ONLY TO NOT WORRY ABOUT THIS STUFF....sorry 4 caps & bad joke but heres a link http://www.washingtontimes.com/blog/watercooler/2011/apr/25/study-enviro-light-bulbs-can-cause-cancer/0
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