In the USA, what is the official standard, for general purposes, for indoor air quality (IAQ)
regarding the acceptable density of bacterial and fungal organisms in the air
a Zero cfu/m3
b <500 cfu/m3
c >750 but <999 cfu/m3
d There are no official standards for microorganisms and IAQ
1
Expert's answer
2012-03-27T10:07:30-0400
The answer is "d". EPA (United States Environmental Protection Agency) does not regulate indoor air, but they do offer assistance in protecting your indoor air quality.
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