From king at snf.stanford.edu Wed Mar 18 22:17:40 2009 From: king at snf.stanford.edu (king at snf.stanford.edu) Date: Wed, 18 Mar 2009 22:17:40 -0700 Subject: Comment thermco2 SNF 2009-03-18 22:17:40: HEPA question Message-ID: Why isn't it in use on this system? Thanks.