New CleanRoom Hours

New CleanRoom Hours
The northern facing end of Duffield Hall on a cloudy day, framed by trees
Duffield Hall, the home of CNF

Update 11/28/23: Please check our LAB Hours webpage at for the most current information on CNF Cleanroom hours. 

CNF prides itself on providing a world-class, open user facility with flexible policies to meet the needs of our broad community. To comply with New York State’s updated building codes that impact Cornell’s Duffield Hall, the home of CNF’s cleanroom and select 3rd floor research labs, the CNF cleanroom will operate with a reduced evening and weekends schedule for a limited time.

Starting Tuesday, October 10th and continuing for 4-7 weeks, the following schedule will be in place:

• Cleanroom access limited - see the Lab Hours webpage for current hours.
• CNF 2nd floor labs, Phillips Hall packaging lab, and the CAD room are open 24/7 with no change.

We understand that this limits the availability of CNF resources for some of our users, and we apologize for the short notice. Cornell is working diligently on a long-term solution so that CNF can return to 24/7 operation as soon as possible.

If you have questions, please contact Ron Olson (