Britannia provides the design and installation of ventilation and extraction systems, fully integrated with gas detection solutions such as oxygen depletion monitors and carbon dioxide detectors.
Ventilation requirements can vary depending on the application and may include low-level extraction, ducted systems, or fresh air supply to ensure safe operating conditions.
In environments where liquid nitrogen is used—typically in cryogenic storage—low-level ventilation is essential. As a dense gas, nitrogen settles at floor level. When liquid nitrogen vaporises, it expands at a ratio of approximately 700:1, displacing oxygen and creating a serious asphyxiation risk.
To maintain safety, ventilation systems must be designed to clear affected areas quickly and effectively. Britannia calculates the required ventilation rates based on room size, layout, and equipment, ensuring a tailored solution for each installation.
Our systems are engineered to operate intelligently—providing controlled extraction under normal conditions to prevent nuisance alarms, and automatically escalating to high-capacity extraction in the event of an alarm, delivering rapid air changes to restore safe oxygen levels.