&gt;<i>Why, why would these commercial roasters allow a &quot;news organization&quot; to analyze the air?</i><p>It <i>is</i> sort of bizarre.  Maybe they were naive, or thought it would be harmless.  Or, maybe they were genuinely curious above what could be a potential health issue and said, &quot;have at it&quot;.  The validity of the test aside, the issue will now get attention (probably too much attention).