I have recently learned that distilled water may contain B. Cepacia. I would strongly recommend <b>NOT</b> using distilled water at all. Here is an article from 2005 mentioning B. Cepacia in distilled water:<a target=_blank class=ftalternatingbarlinklarge href="http://www.ashp.org/import/News/HealthSystemPharmacyNews/newsarticle.aspx?id=1761
">http://www.ashp.org/import/New...sarticle.aspx?id=1761
</a>
">http://www.ashp.org/import/New...sarticle.aspx?id=1761
</a>