Maintenance work will be completed on the exhaust air systems serving the 4th and 5th floors of NTA. There will be intermittent and/or reduced supply and exhaust airflow to the 4th floor and 5th floors during this outage. No work may take place in the 4th floor ABSL3 suites on October 7th 5 am – 6 am. Minimal impact is expected to space temperature and humidity on the 4th and 5th floor animal areas during this outage.