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<p class="MsoNormal"><span style="color:#1F497D">Here is a good cross-reference guide.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">We have MERV-8 as pre-filters in our makeup air unit they have plastic frames they are 2” thick. The final filter in the MAU is
</span><span style="color:#1F497D">4” thick Merv-15 Precision Cell ll 95% filters, again plastic frame. This air is then feed to the chases and passed into Fan Filter HEPA ceiling units. Hope this helps</span><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I am not familiar with a FCU, what does that stand for.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Rick<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Draper Laboratory<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Principal Member of the Technical Staff<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Group Leader Microfabrication Operations<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">555 Technology Square<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Cambridge Ma, 02139-3563<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">www.draper.com<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">rmorrison@draper.com<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">W 617-258-3420<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">C 508-930-3461<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> labnetwork-bounces@mtl.mit.edu [mailto:labnetwork-bounces@mtl.mit.edu]
<b>On Behalf Of </b>Shivakumar Bhaskaran<br>
<b>Sent:</b> Thursday, April 09, 2015 11:34 AM<br>
<b>To:</b> labnetwork@mtl.mit.edu<br>
<b>Subject:</b> [labnetwork] Filter type for the FCU<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My building Facility Engineer was trying to change the filters in the FCU. He found that the FCU was installed with MERV8 type filter. I looked into the specs and it mentioned its used in commercial building.
<o:p></o:p></p>
<p class="MsoNormal">For cleanroom the filter type is MERV20. Before we change , I want to consult with you guys on what type of filters do you use in your FCU. Our FCU is located in the Chase area of the Cleanroom ceiling.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The filter that was installed were Pre-pleat 40 LPD. The filter frame is cardboard, I am worried that this cardboard framed filter shouldn’t be used in the FCU instead it should be metal frame or plastic.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">-Shiva<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif"">Shivakumar Bhaskaran, Ph.D.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif"">Searle CleanRoom Manager<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif"">The University of Chicago<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif"">5735 S.Ellis, Room 032<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif"">Chicago-60637<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif"">Ph:773-795-2297<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif""><a href="https://searle-cleanroom.uchicago.edu/">https://searle-cleanroom.uchicago.edu/</a><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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