<div dir="ltr"><div>Hi All,</div><div><br></div><div>We allow in-ear headphones (no over-ear headphones), but ask them to only wear one so that they can still hear the environment around them. </div><div><br></div><div>Best,</div><div>Jacob</div><div><br></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">-------------------------------------<br><b>Jacob Trevino, PhD</b><br>Senior Director, Columbia Nano Initiative Labs<br>Columbia University<br>530 W120th Street, Room 1015/MC 8903<div>New York, NY 10027<br>Email:<a href="mailto:jt2900@columbia.edu" target="_blank"> jt2900@columbia.edu</a><br>Cell: 734-787-2171</div><div>Desk: 212-854-9927<br><div><a href="https://cni.columbia.edu/" target="_blank">https://cni.columbia.edu/</a></div></div><div><a href="https://www.linkedin.com/in/jacob-t-trevino/" target="_blank">https://www.linkedin.com/in/jacob-t-trevino/</a></div></div></div></div><br></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Wed, Jul 8, 2026 at 7:52 AM Ahad Syed <<a href="mailto:ahad.syed@kaust.edu.sa">ahad.syed@kaust.edu.sa</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg-2170297898210242006">
<div style="font-size:1px;color:rgb(255,255,255);line-height:1px;max-height:0px;opacity:0;overflow:hidden;display:none">
Hello Fubo, About 18 months ago, we had an incident where a user didn't hear the fire alarm because they were wearing noise-cancelling earbuds. They were so focused on their work (and music) that they didn't notice either the audible alarm or</div>
<div style="font-size:1px;color:rgb(255,255,255);line-height:1px;max-height:0px;opacity:0;overflow:hidden;display:none">ZjQcmQRYFpfptBannerStart</div>
<u></u>
<div dir="ltr" lang="en" id="m_-2170297898210242006pfptBannerq4krboo" style="display:block;text-align:left;margin:0px 0px 10px;padding:7px 16px 8px;border-radius:4px;min-width:200px;background-color:rgb(250,223,155);border-top:4px solid rgb(242,176,4)">
<div id="m_-2170297898210242006pfptBannerq4krboo" style="float:left;display:block;margin:1px 0px;max-width:600px">
<div id="m_-2170297898210242006pfptBannerq4krboo" style="display:block;background-color:rgb(250,223,155);color:rgb(0,0,0);font-family:Arial,sans-serif;font-weight:bold;font-size:14px;line-height:1.29">
Be Careful With This Message
</div>
<div id="m_-2170297898210242006pfptBannerq4krboo" style="font-weight:normal;display:block;background-color:rgb(250,223,155);color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:12px;line-height:1.5;margin-top:2px">
The sender's identity could not be verified and someone may be impersonating the sender.
</div>
</div>
<div style="height:0px;clear:both;display:block;line-height:0;font-size:0.01px"> </div>
</div>
<u></u>
<div style="font-size:1px;color:rgb(255,255,255);line-height:1px;max-height:0px;opacity:0;overflow:hidden;display:none">ZjQcmQRYFpfptBannerEnd</div>
<div dir="ltr">
<div style="font-family:Verdana,Geneva,sans-serif;font-size:10pt;color:rgb(0,0,0)">
Hello Fubo,</div>
<div style="margin-top:1em;margin-bottom:1em;font-family:Verdana,Geneva,sans-serif;font-size:10pt;color:rgb(0,0,0)">
About 18 months ago, we had an incident where a user didn't hear the fire alarm because they were wearing noise-cancelling earbuds. They were so focused on their work (and music) that they didn't notice either the audible alarm or the flashing lights.</div>
<div style="margin-top:1em;margin-bottom:1em;font-family:Verdana,Geneva,sans-serif;font-size:10pt;color:rgb(0,0,0)">
Following that incident, we decided to ban all types of headphones and earbuds in the Cleanroom.</div>
<div style="font-family:Verdana,Geneva,sans-serif;font-size:10pt;color:rgb(0,0,0)">
All the best,</div>
<div style="font-family:Verdana,Geneva,sans-serif;font-size:10pt;color:rgb(0,0,0)">
Ahad</div>
<div id="m_-2170297898210242006Signature">
<div style="font-family:Verdana,Geneva,sans-serif;font-size:10pt;color:rgb(0,0,0)">
<br>
</div>
<div style="margin-right:0px;margin-left:0px;font-size:13px">
<span style="font-family:Verdana,Geneva,sans-serif;font-size:9.75pt;color:rgb(34,34,34);background-color:rgb(255,255,255)">-- </span><span style="font-family:Verdana,Geneva,sans-serif"><br>
</span><span style="font-family:Calibri,Arial,Helvetica,sans-serif"></span></div>
<div style="direction:ltr;text-align:left;text-indent:0px;margin-right:0px;margin-left:0px;font-family:Verdana,Geneva,sans-serif;font-size:9.75pt;color:rgb(34,34,34)">
Nanofabrication Core Lab</div>
<div style="direction:ltr;text-align:left;text-indent:0px;margin-right:0px;margin-left:0px;font-family:Verdana,Geneva,sans-serif;font-size:9.75pt;color:rgb(34,34,34)">
4700 King Abdullah University of Science and Technology<br>
0253 Building 3, Thuwal 23955-6900, Kingdom of Saudi Arabia<br>
Tel:+966 12 808 2348</div>
<div style="direction:ltr;text-align:left;text-indent:0px;margin-right:0px;margin-left:0px;font-family:Verdana,Geneva,sans-serif;font-size:9.75pt;color:rgb(34,34,34)">
<a href="https://urldefense.com/v3/__https://corelabs.kaust.edu.sa/visitor-information__;!!BDUfV1Et5lrpZQ!XcspatWnmlX5QlURslhz7XM6boLnvoa_UREt7RAFO0rbS7bHHTW9zNgFjx6SJV1F8agHGNcK2I09BcXUCctQELy3KvC2$" id="m_-2170297898210242006OWA9045abf0-1d2e-7c22-fabf-b074a16e0891" target="_blank">Visit The Core Labs</a></div>
</div>
<div id="m_-2170297898210242006appendonsend"></div>
<hr style="display:inline-block;width:98%">
<div id="m_-2170297898210242006divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> labnetwork <<a href="mailto:labnetwork-bounces@mtl.mit.edu" target="_blank">labnetwork-bounces@mtl.mit.edu</a>> on behalf of Fubo Rao <<a href="mailto:furao@ucsd.edu" target="_blank">furao@ucsd.edu</a>><br>
<b>Sent:</b> Tuesday, July 7, 2026 9:12 PM<br>
<b>To:</b> Network Fab <<a href="mailto:labnetwork@mtl.mit.edu" target="_blank">labnetwork@mtl.mit.edu</a>><br>
<b>Subject:</b> [BULK] [EXTERNAL] [labnetwork] earbud/earphone use in facility/cleanroom</font>
<div> </div>
</div>
<div>
<table border="0" cellspacing="0" cellpadding="0" width="100%" align="left" style="background:revert;color:revert;direction:revert;font-size:revert;height:revert;letter-spacing:revert;line-height:revert;margin:revert;opacity:revert;outline:revert;overflow:revert;padding:revert;text-align:revert;text-indent:revert;text-orientation:revert;text-overflow:revert;text-transform:revert;vertical-align:revert;white-space:revert;word-break:revert;word-spacing:revert;writing-mode:revert;zoom:revert;border:0px;display:table;width:100%;table-layout:fixed;float:none;border-spacing:0px">
<tbody style="background:revert;border:revert;color:revert;direction:revert;font-size:revert;height:revert;letter-spacing:revert;line-height:revert;margin:revert;opacity:revert;outline:revert;overflow:revert;padding:revert;table-layout:revert;text-align:revert;text-indent:revert;text-orientation:revert;text-overflow:revert;text-transform:revert;vertical-align:revert;white-space:revert;width:revert;word-break:revert;word-spacing:revert;writing-mode:revert;zoom:revert;display:block">
<tr style="background:revert;border:revert;color:revert;direction:revert;display:revert;font-size:revert;height:revert;letter-spacing:revert;line-height:revert;margin:revert;opacity:revert;outline:revert;overflow:revert;padding:revert;table-layout:revert;text-align:revert;text-indent:revert;text-orientation:revert;text-overflow:revert;text-transform:revert;vertical-align:revert;white-space:revert;width:revert;word-break:revert;word-spacing:revert;writing-mode:revert;zoom:revert">
<td valign="middle" width="1px" bgcolor="#A6A6A6" cellpadding="7px 2px 7px 2px" style="background-image:revert;background-position:revert;background-size:revert;background-repeat:revert;background-origin:revert;background-clip:revert;border:revert;color:revert;direction:revert;display:revert;font-size:revert;height:revert;letter-spacing:revert;line-height:revert;margin:revert;opacity:revert;outline:revert;overflow:revert;table-layout:revert;text-align:revert;text-indent:revert;text-orientation:revert;text-overflow:revert;text-transform:revert;vertical-align:revert;white-space:revert;word-break:revert;word-spacing:revert;writing-mode:revert;zoom:revert;padding:7px 2px;background-color:rgb(166,166,166);width:0px">
</td>
<td valign="middle" width="100%" bgcolor="#EAEAEA" cellpadding="7px 5px 7px 15px" color="#212121" style="background-image:revert;background-position:revert;background-size:revert;background-repeat:revert;background-origin:revert;background-clip:revert;border:revert;direction:revert;display:revert;height:revert;letter-spacing:revert;line-height:revert;margin:revert;opacity:revert;outline:revert;overflow:revert;table-layout:revert;text-indent:revert;text-orientation:revert;text-overflow:revert;text-transform:revert;vertical-align:revert;white-space:revert;word-break:revert;word-spacing:revert;writing-mode:revert;zoom:revert;width:100%;background-color:rgb(234,234,234);padding:7px 5px 7px 15px;font-family:wf_segoe-ui_normal,"Segoe UI","Segoe WP",Tahoma,Arial,sans-serif;font-size:12px;font-weight:normal;color:rgb(33,33,33);text-align:left">
<div style="background:revert;border:revert;color:revert;direction:revert;display:revert;font-size:revert;height:revert;letter-spacing:revert;line-height:revert;margin:revert;opacity:revert;outline:revert;overflow:revert;padding:revert;table-layout:revert;text-align:revert;text-indent:revert;text-orientation:revert;text-overflow:revert;text-transform:revert;vertical-align:revert;white-space:revert;width:revert;word-break:revert;word-spacing:revert;writing-mode:revert;zoom:revert">
You don't often get email from <a href="mailto:furao@ucsd.edu" target="_blank">furao@ucsd.edu</a>. <a href="https://urldefense.com/v3/__https://aka.ms/LearnAboutSenderIdentification__;!!BDUfV1Et5lrpZQ!XcspatWnmlX5QlURslhz7XM6boLnvoa_UREt7RAFO0rbS7bHHTW9zNgFjx6SJV1F8agHGNcK2I09BcXUCctQEIHkCj6J$" style="background:revert;color:revert;direction:revert;display:revert;font-size:revert;opacity:revert" target="_blank">
Learn why this is important</a> </div>
</td>
<td valign="middle" align="left" width="75px" bgcolor="#EAEAEA" cellpadding="7px 5px 7px 5px" color="#212121" style="background-image:revert;background-position:revert;background-size:revert;background-repeat:revert;background-origin:revert;background-clip:revert;border:revert;direction:revert;display:revert;height:revert;letter-spacing:revert;line-height:revert;margin:revert;opacity:revert;outline:revert;overflow:revert;table-layout:revert;text-indent:revert;text-orientation:revert;text-overflow:revert;text-transform:revert;vertical-align:revert;white-space:revert;word-break:revert;word-spacing:revert;writing-mode:revert;zoom:revert;width:75px;background-color:rgb(234,234,234);padding:7px 5px;font-family:wf_segoe-ui_normal,"Segoe UI","Segoe WP",Tahoma,Arial,sans-serif;font-size:12px;font-weight:normal;color:rgb(33,33,33);text-align:left">
</td>
</tr>
</tbody>
</table>
<div>
<div dir="ltr">
<div>Dear Colleagues,</div>
<div><br>
</div>
<div>Do you ban, regulate, or allow your users to wear earbuds or earphones in your facility, especially in the Cleanroom?</div>
<div>
<div dir="ltr">
<div dir="ltr">
<div style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px"><br>
</div>
<div style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px">Thanks,</div>
<div style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px"><br>
</div>
<div style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px">Fubo Rao, Ph.D.,</div>
<div style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px">Nano3 Technical Director,<br>
</div>
<div style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px">Qualcomm Institute/Atkinson Hall,</div>
<div style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px">UC San Diego<br>
9500 Gilman Drive #0436<br>
La Jolla, CA 92093-0436</div>
<div style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px">Tel. (858)534-4518</div>
<div style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px">Cell: (858)375-9190</div>
<div style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px">E-mail: <a href="mailto:furao@ucsd.edu" style="color:rgb(17,85,204)" target="_blank">furao@ucsd.edu</a></div>
<div><font color="#000000" face="Helvetica"><span style="font-size:14px"><a href="https://urldefense.com/v3/__https://nanofab.ucsd.edu/__;!!BDUfV1Et5lrpZQ!XcspatWnmlX5QlURslhz7XM6boLnvoa_UREt7RAFO0rbS7bHHTW9zNgFjx6SJV1F8agHGNcK2I09BcXUCctQELu-P4-L$" target="_blank">https://nanofab.ucsd.edu/</a></span></font></div>
<div><font face="Helvetica" size="4" color="#00ff00"><a href="https://urldefense.com/v3/__https://nanofab.ucsd.edu/about/__;!!BDUfV1Et5lrpZQ!XcspatWnmlX5QlURslhz7XM6boLnvoa_UREt7RAFO0rbS7bHHTW9zNgFjx6SJV1F8agHGNcK2I09BcXUCctQEDNtwpAA$" style="background-color:rgb(0,255,0)" target="_blank">About Nano3</a></font></div>
<div><font color="#000000" face="Helvetica"><a href="https://urldefense.com/v3/__https://www.linkedin.com/company/ucsd-nano3-shared-research-facility/__;!!BDUfV1Et5lrpZQ!XcspatWnmlX5QlURslhz7XM6boLnvoa_UREt7RAFO0rbS7bHHTW9zNgFjx6SJV1F8agHGNcK2I09BcXUCctQEDm1upmh$" target="_blank"><img alt="https://www.linkedin.com/company/ucsd-nano3-shared-research-facility/" src="https://ci3.googleusercontent.com/mail-sig/AIorK4zh1HPuORTDkboG98tWzyEUQOzhjyfga7tbJQPc8W3MHG-IJOX0fdynFzMytim3__psBT-N23H59iOa"></a><br>
</font></div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
_______________________________________________<br>
labnetwork mailing list<br>
<a href="mailto:labnetwork@mtl.mit.edu" target="_blank">labnetwork@mtl.mit.edu</a><br>
<a href="https://urldefense.com/v3/__https://mtl.mit.edu/mailman/listinfo.cgi/labnetwork__;!!BDUfV1Et5lrpZQ!XcspatWnmlX5QlURslhz7XM6boLnvoa_UREt7RAFO0rbS7bHHTW9zNgFjx6SJV1F8agHGNcK2I09BcXUCctQECA6OTfS$" rel="noreferrer" target="_blank">https://urldefense.com/v3/__https://mtl.mit.edu/mailman/listinfo.cgi/labnetwork__;!!BDUfV1Et5lrpZQ!XcspatWnmlX5QlURslhz7XM6boLnvoa_UREt7RAFO0rbS7bHHTW9zNgFjx6SJV1F8agHGNcK2I09BcXUCctQECA6OTfS$</a> <br>
</div></blockquote></div>