The H Series is a member of a family of HEPA and ULPA filters designed to meet the airflow and particle control requirements required for clean rooms. It offers a knife edge or seal gasket frame suitable for any ceiling frame. All filters can be customized to maximize the requirements of a wide range of applications. The clapless filter is suitable for all kinds of clean rooms, clean desks, clean pharmaceutical plants, biological plants, food processing plants and any other place where air pollution needs to be strictly controlled.