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HMNTL is a four-decade old facility. Our returns and supply ducts are all galvanized and have no issues with our returns or supply ducts. </div>
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<span style="color: rgb(0, 32, 96);"><b>Deon D. Collins</b></span></p>
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<span style="color: rgb(0, 32, 96);"><b> </b></span></p>
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<span style="color: rgb(0, 32, 96);"><br>
<i>Director of Facilities</i></span></p>
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<span style="color: rgb(0, 32, 96);"><i>The Grainger College Of Engineering UIUC</i><br>
Holonyak Micro & Nanotechnology Lab</span><span style="color: rgb(31, 73, 125);"><br>
</span><span style="color: rgb(19, 41, 75);">208 N Wright St Rm. 1114 | MC-249</span><span style="color: rgb(31, 73, 125);"><br>
</span><span style="color: rgb(19, 41, 75);">Urbana, IL 61801</span><span style="color: rgb(31, 73, 125);"><br>
</span><span style="color: rgb(19, 41, 75);">217-300-7531 | </span><span style="color: rgb(5, 99, 193);"><a href="mailto:deonc69@illinois.edu" style="color: rgb(5, 99, 193); margin-top: 0px; margin-bottom: 0px;"><u>deonc69@illinois.edu</u></a></span><span style="color: rgb(31, 73, 125);"><br>
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<a href="http://illinois.edu/" style="color: rgb(31, 73, 125); margin-top: 0px; margin-bottom: 0px;"><u><img alt="https://webtools.illinois.edu/webservices/js/ds/signature_logo.png" width="118" height="20" style="width: 1.239in; height: 0.218in; margin-top: 0px; margin-bottom: 0px;" data-outlook-trace="F:1|T:1" src="cid:5110eb28-31f9-4352-981a-100d58a19ce1"></u></a><br>
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</span><span style="color: rgb(102, 102, 102);"><i>Under the Illinois Freedom of Information Act any written communication to or from university employees regarding university business is a public record and may be subject to public disclosure.
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<span style="color: rgb(31, 73, 125);"><u> </u></span></p>
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<span style="font-size: 10pt; color: rgb(163, 35, 139);"><b>Life begins at the end of your comfort zone.
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<span style="font-size: 10pt; color: rgb(163, 35, 139);"><b> Propeck Amanda</b></span></p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> labnetwork <labnetwork-bounces@mtl.mit.edu> on behalf of Joseph Losby <joseph.losby@ucalgary.ca><br>
<b>Sent:</b> Monday, May 4, 2026 11:49 AM<br>
<b>To:</b> Lab Network (labnetwork@mtl.mit.edu) <labnetwork@mtl.mit.edu><br>
<b>Subject:</b> [labnetwork] Galvanized steel for air-return surfaces</font>
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Hello Labnetwork, </div>
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We are designing an ISO 5 facility using a bay-and-chase layout. Do you recommend the use of galvanized steel for recirculating air-return surfaces (only), specifically regarding long term risks of zinc oxide shedding or oxidation? All air return is refiltered
before entering the cleanroom. </div>
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<br>
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Would powder-coated aluminum be a better option? Although stainless steel would be used for the ducting between the AHUs and cleanroom HEPA filters (as well as all exhausts), the use of galvanized upstream is mainly a value engineering consideration.</div>
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Cheers,</div>
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Joe</div>
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<p class="x_elementToProof" style="text-align:left; margin:0px"><span style="font-family:Calibri,Calibri_EmbeddedFont,Calibri_MSFontService,sans-serif; font-size:10pt; color:rgb(214,0,28); line-height:17px"><b>Joseph Losby, PhD</b></span></p>
<p class="x_elementToProof" style="text-align:left; margin:0px"><span style="font-family:Calibri,Calibri_EmbeddedFont,Calibri_MSFontService,sans-serif; font-size:13.3333px; color:rgb(0,0,0); background-color:rgb(255,255,255); line-height:17px"><b>Manager, qLab
Operations</b></span></p>
<p class="x_elementToProof" style="text-align:left; margin:0px"><span style="font-family:Calibri,Calibri_EmbeddedFont,Calibri_MSFontService,sans-serif; font-size:13.3333px; color:rgb(200,38,19); background-color:rgb(255,255,255); line-height:17px"><b>Quantum
City, Office of the VPR</b></span></p>
<p class="x_elementToProof" style="text-align:left; margin:0px"><span style="font-family:Calibri,Calibri_EmbeddedFont,Calibri_MSFontService,sans-serif; font-size:10pt; color:rgb(0,0,0); line-height:17px"><b>joseph.losby@ucalgary.ca</b></span></p>
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