[ RadSafe ] efficiency rating for HEPA filter in rad hood

William Lipton doctorbill34 at gmail.com
Thu Oct 20 16:12:41 CDT 2011

The HEPA efficiency for iodine is zero.  You need an activated charcoal

Bill Lipton
It's not about dose, it's about trust.
 On Oct 20, 2011 1:15 PM, "Hofer, Curtis" <chofer at montana.edu> wrote:

> Hello,
> Does anyone the efficiency rating for a HEPA filter in a fume hood that may
> be used for radioiodinations?  I was unable to find anything in 10 CFR 20
> about fume hoods.
> Thanks in advance and have a great day!
> Curtis
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