The CVT100 Pyrocheck Intumescent Fire Damper is a 100mm round unit designed for safe air transfer through doors and partitions. Constructed from UV-stabilised UPVC, it provides a dependable fire safety solution with minimal resistance to airflow compared to conventional dampers. In the event of a fire, the damper forms a complete seal within approximately five minutes, offering proven integrity of up to 68 minutes when tested in accordance with BS 476 Part 22. Independently certified and engineered for reliability, this fire damper delivers effective protection and performance in new build applications.