Continuous monitoring of Oxygen in MRI and NMR rooms in hospitals & clinics

Magnetic Resonance Imaging (MRI) machines use a powerful magnetic field to produce 2D or 3D images of the internal human body. Nuclear Magnetic Resonance (NMR) spectroscopy analyzes samples to identify their components at an atomic level. Compressed gases and cryogenic liquids (usually nitrogen, helium and sometimes carbon dioxide) are used to cool the superconducting magnets in both types of machines and also move samples in and out of NMR machines. If a coolant leak occurs, the hazardous gas can displace the oxygen in the room, creating a dangerous situation for the people inside the room. Continuous monitoring for potential oxygen deficiency levels ensures the health and safety of patients and staff.

Image: Typical MRI Room Monitoring System



  • The DCC-MRI should be mounted outside the MRI room so the strong magnetic field inside the MRI rooms cannot interfere and cause it to malfunction
  • Flexible tubing runs from the inlet port fitting on the DCC-MRI to the area where a leak is most likely to occur inside the MRI room and the sampled air is appropriately exhausted through the outlet port through more flexible tubing
  • Regular maintenance should be conducted two times per year, with periodic bump tests in between


  • Oxygen deficiency (O2)​


Incubator Verification Monitoring

Monitoring Oxygen Deficiency

DCC-MRI Oxygen Sampling System
YESAIR Incubator Verification Monitor



If the inlet tube becomes blocked and/or the filter becomes dirty, the display will show “Flow Alarm” and the Channel 2 LED will turn red, the buzzer will sound and the pump will shut off. After the blockage has been removed / the dirty filter replaced, press the “Silence” push-button to stop the buzzer, restart the pump and clear the latching.