... HEPA filter 2) Low resistance to airflow 3) H13-H14 Pleated Air Filter Features: 1) Collect 0.5 micron and larger ... in air conditioning systems, housing-ducts or diffusers6) Type: HS pleated HEPA filter with 99.99% efficiency at 0.3um 7 ... plate, stainless steel plate, aluminum plate, aluminum alloy plate8) Media: pleated glass fiber paper9) Sealant: polyurethane10) Separator: aluminum foil paper hot ...