The CVT300 Pyrocheck Intumescent Fire Damper is a 300mm round damper designed for safe air transfer through doors and partitions. Constructed from UV-stabilised UPVC, it offers significantly lower resistance to airflow compared to traditional dampers, enhancing ventilation efficiency. In a fire event, the damper seals completely within approximately five minutes, helping prevent the spread of fire and smoke. Independently tested to BS 476 Part 22, it provides a fire integrity rating of 68 minutes. Ideal for commercial installations, the CVT300 ensures reliable fire safety while maintaining efficient airflow in ventilation systems.