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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal style='margin-top:6.0pt'><span style='font-size:11.0pt'>Hello <b>Bernhard</b>-<o:p></o:p></span></p><p class=MsoNormal style='margin-top:6.0pt'><span style='font-size:11.0pt'>Face and hand covering as are generally standard for all personnel within microfabrication cleanrooms. <o:p></o:p></span></p><ul style='margin-top:0in' type=disc><li class=MsoListParagraph style='margin-left:-.25in;mso-list:l0 level1 lfo1'><span style='font-size:11.0pt'>Face coverings:<o:p></o:p></span></li><ul style='margin-top:0in' type=circle><li class=MsoListParagraph style='margin-left:-.25in;mso-list:l0 level2 lfo1'><span style='font-size:11.0pt'>Most, but not all, fabs require safety glasses be worn by all personnel within a fab with the exception of those actively using stereomicroscopes.<o:p></o:p></span></li><li class=MsoListParagraph style='margin-left:-.25in;mso-list:l0 level2 lfo1'><span style='font-size:11.0pt'>Generally coverage of face from the nose down is built into cleanroom hoods, which are commonly further augmented (within the hoods) by surgical masks or beard-coverings for men with facial hair donned earlier in the gowning process (prior to the hood).<o:p></o:p></span></li><li class=MsoListParagraph style='margin-left:-.25in;mso-list:l0 level2 lfo1'><span style='font-size:11.0pt'>PPE (personal protective equipment) for chemical handing commonly will add an additional PPE at the point of use, e.g., a chemical visor, which covers the entire face from above the hairline to below the chin.<o:p></o:p></span></li></ul><li class=MsoListParagraph style='margin-left:-.25in;mso-list:l0 level1 lfo1'><span style='font-size:11.0pt'>Hand and arm coverings:<o:p></o:p></span></li><ul style='margin-top:0in' type=circle><li class=MsoListParagraph style='margin-left:-.25in;mso-list:l0 level2 lfo1'><span style='font-size:11.0pt'>Generally the hands are covered by nitrile or latex gloves for all cleanroom personnel.<o:p></o:p></span></li><li class=MsoListParagraph style='margin-left:-.25in;mso-list:l0 level2 lfo1'><span style='font-size:11.0pt'>PPE for chemical handling commonly will add (at the point of use) wrist gauntlets as well as a second set of chemical gloves.<o:p></o:p></span></li></ul></ul><p class=MsoNormal style='margin-top:6.0pt'><span style='font-size:11.0pt'>In addition to the chemical visors, gauntlets and gloves, chemical aprons are also fairly standard PPE for chemical handling personnel. I have never heard an argument for forgoing chemical PPE due to risk of trapping typical fab chemicals. That said, the washing, drying, and storage of chemical PPE after use often has additional safety procedures and controls.<o:p></o:p></span></p><p class=MsoNormal style='margin-top:6.0pt'><span style='font-size:11.0pt'>I hope that was helpful.<o:p></o:p></span></p><p class=MsoNormal style='margin-top:6.0pt'><span style='font-size:11.0pt'>Regards,<o:p></o:p></span></p><p class=MsoNormal style='margin-top:6.0pt'><span style='font-size:11.0pt'>-<b>Carrie</b><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:9.0pt;font-family:"Book Antiqua",serif'>S. Carolene Huguenin<o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Book Antiqua",serif'>Associate Group Leader<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Book Antiqua",serif'>Microelectronics Laboratory<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Book Antiqua",serif'>ML 201-B<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Book Antiqua",serif'>(o): (781) 981-1643<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Book Antiqua",serif'>(m): (781) 238-0317<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Arial Narrow",sans-serif'><img width=113 height=47 style='width:1.177in;height:.4895in' id="Picture_x0020_1" src="cid:image001.gif@01DB70C1.BA8D67F0" alt=MITLLSmaller><br></span><span style='font-size:9.0pt;font-family:"Book Antiqua",serif'>244 Wood Street<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Book Antiqua",serif'>Lexington, MA 02420<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:11.0pt'>From:</span></b><span style='font-size:11.0pt'> labnetwork <labnetwork-bounces@mtl.mit.edu> <b>On Behalf Of </b>Bernhard Reineke<br><b>Sent:</b> Monday, January 27, 2025 4:04 AM<br><b>To:</b> labnetwork@mtl.mit.edu<br><b>Subject:</b> [EXT] [labnetwork] Glove and mask use<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal style='mso-line-height-alt:.75pt'><span style='font-size:1.0pt;color:white'>Dear all, currently, we are in discussions with our occupational safety team and they are having issues allowing us to use masks in the cleanroom, as we work with chemicals and there is a concern that chemicals could be transferred from the<o:p></o:p></span></p></div><div><p class=MsoNormal style='mso-line-height-alt:.75pt'><span style='font-size:1.0pt;color:white'>ZjQcmQRYFpfptBannerStart<o:p></o:p></span></p></div><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width="100%" style='width:100.0%;border-radius:4px'><tr><td style='padding:12.0pt 0in 12.0pt 0in'><table class=MsoNormalTable border=1 cellspacing=0 cellpadding=0 width="100%" style='width:100.0%;background:#D0D8DC;border:none;border-top:solid #90A4AE 3.0pt'><tr><td valign=top style='border:none;padding:0in 7.5pt 3.75pt 4.5pt'><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 align=left><tr><td style='padding:3.0pt 6.0pt 3.0pt 6.0pt'><p class=MsoNormal><b><span style='font-size:10.5pt;font-family:"Arial",sans-serif;color:black'>This Message Is From an External Sender <o:p></o:p></span></b></p></td></tr><tr><td style='padding:3.0pt 6.0pt 3.0pt 6.0pt'><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:black'>This message came from outside the Laboratory. <o:p></o:p></span></p></td></tr></table></td></tr></table></td></tr></table><div><p class=MsoNormal style='mso-line-height-alt:.75pt'><span style='font-size:1.0pt;color:white'>ZjQcmQRYFpfptBannerEnd<o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:11.0pt'>Dear all,<br><br>currently, we are in discussions with our occupational safety team and they are having issues allowing us to use masks in the cleanroom, as we work with chemicals and there is a concern that chemicals could be transferred from the gloves to the mask and inhaled. Have you encountered similar problems? Do you have any suggestions on how to address this issue? We would be happy for any suggestion.<br><br>I asked my colleagues and they suggested using double gloving and disposing of the contaminated gloves after contact with chemicals. What are your opinions?<br><br>Best Wishes,<br><br>Bernhard Reineke Matsudo <br>Paderborn University<br>PhoQS<br>Warburg Straße 100<br>33098 Paderborn <br>Germany <o:p></o:p></span></p></div></body></html>