Deep pleat Hepa Filter (Separator type) Model: Hepatec I. Application: Final or return filtration for clean rooms with turbulent flow, in air conditioning systems, housing-ducts or diffusers. EN 1822:2009 filter class: H10, H11, H12, H13, H14. Frame: Wooden, GI, Alu, Stainless Steel. Gasket: Endless polyurethane gasket at inlet.