On Wednesday, February 12th, from 6 am to 2 pm, exhaust fan 18 will be shut down to facilitate the construction of the 9th-floor renovation project and ensure the safety of the electrical technicians changing the electrical feeds and control wiring. The areas affected are the 9th and 7th-floor labs and equipment that use exhaust air, including but not limited to fume hood(s) and general floor exhaust.