Dear Cleanroom Users, Due to an emergency repair to our cleanroom air handling system, we need to shut down the cleanroom tomorrow Friday (5/25/18) morning from 5:30AM - 7:30AM to make repairs. We will send a notice once the cleanroom is operational and thank you for your patience and understanding. Mark Voorhis Building Manager Purdue University Birck Nanotechnology Center Office: (765) 494-3036