For absolute filtration a full range of deep pleat and minipleat HEPAs is available in efficiencies of H10, H11, H12, H13, H14, U15, U16 and U17. From single filter cells to complete ceiling banks, from fan filter units to terminal module types with or without spigots, gaskets, knife edge seals and in-built diffusers, our range is wide and complete. We also provide housings and hardware. Test certificates can be supplied upon request, and a clean room calibration service using our own laser particle counters is available.