<div>Iulian,</div>
<div> </div>
<div>good morning.  We've always used UHP product for anything that touches the device surface (blow off guns, chamber venting, process gas, etc.).  Utility N2 is used primarily for secondary purging, like pump purges.<br clear="all">
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<div>Dennis Schweiger</div>
<div>Facilities Manager</div>
<div>Lurie Nanofabrication Facility</div>
<div>UofMichigan</div>
<div> </div>
<div>734.647.2055 Ofc</div>
<div> </div></div><br>
<div class="gmail_quote">On Fri, Jan 11, 2013 at 11:40 AM, Iulian Codreanu <span dir="ltr"><<a href="mailto:codreanu@udel.edu" target="_blank">codreanu@udel.edu</a>></span> wrote:<br>
<blockquote style="BORDER-LEFT:#ccc 1px solid;MARGIN:0px 0px 0px 0.8ex;PADDING-LEFT:1ex" class="gmail_quote">Dear Colleagues,<br><br>Would it be overkill or a good idea to supply high purity nitrogen (instead of utility nitrogen) to the blow guns located in cleanroom fume hoods?<br>
<br>Thank you for your help.<span class="HOEnZb"><font color="#888888"><br><br>Iulian<br><br>-- <br>iulian Codreanu, Ph.D.<br>Director of Operations, UD Nanofab<br>149 Evans Hall<br>Newark, DE 19716<br><a href="tel:302-831-2784" target="_blank" value="+13028312784">302-831-2784</a><br>
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