Both liquid helium and liquid nitrogen are regularly used at YNiC. These are both extremely cold (as low as -269oC) and therefore have the potential to cause freeze burns if handled incorrectly. The handling of the cryogen bottles and dewars must therefore only be carried out by a trained operator.
Cryogen boil off. If you enter any MRI or MEG area and observe a white cloud of gas, this could be due to freezing gases being present and Oxygen levels may be dangerously low. Oxygen level alarms are present and may be sounding. If you suspect a low oxygen level, leave the area immediately and alert a member of YNiC staff who will deal with the situation.