01/05/19 At 2150 hrs Dauphin County 911 dispatched for an OIC call to have a chief respond to M&T Bank for an odor investigation. Chief 40 arrived on the scene and meet up with maintenance staff and was advised of possible CO in the building. They has a staff member go to the hospital due to feeling ill. Chief 40 had the Engine and Rescue dispatched. Crews arrived and metered the 2nd floor in the area where the worker was working and found no readings. Crews then metered the rest of the building finding no CO readings. Time out was 1 hr 16 mins.