Elevator shafts can affect your negative air pressure if the elevator is within your ICRA containment.
If you are experiencing any fluctuations with your differential pressure sensors, it may be caused by the elevator shaft housing unwanted air.
If an elevator shaft must be captured within your ICRA containment setup, we highly recommend an anteroom surrounding the entrance and exit of the elevator to minimize fluctuations with your differential pressure.
Make sure during set-up that there are no led-lined walls nearby. This could lead to disconnection from your gateway to your sensors.
