Thank you for the your patience. The electrical failure is fixed and all building and exhaust systems are back to normal. We are clear to use fume hoods, wet chemical, and hazardous gas processes. Thank you, Mark Voorhis Building Manager Purdue University Birck Nanotechnology Center From: Voorhis, Mark L. Sent: Thursday, October 04, 2018 3:12 PM To: 'BNC-all <bnc-all-bounces@ecn.purdue.edu> (bnc-all-bounces@ecn.purdue.edu)' <bnc-all-bounces@ecn.purdue.edu> Subject: NOTICE - WEST LAB WING ONLY - Chemical Exhaust Interruption Sensitivity: Private Dear BNC Users, In preparation for the Oct 15 shut down we are commissioning couple temporary UPS units when we accidently lost power to our west lab wing exhaust system shutting down all fume hoods, wet chemical processes and hazardous gas processes. You may notice that all the fume hood exhaust alarms going off indicating that it is UNSAFE to use the fume hoods at the time. Until further notice no chemical processing will not be allowed until the issue is rectified. Again this interruption involves the WEST LAB WING ONLY Mark Voorhis Building Manager Purdue University Birck Nanotechnology Center Office: (765) 494-3036 [Purdue_University-150_Years_of_Giant_Leaps] www.purdue.edu/giantleaps<http://www.purdue.edu/giantleaps>