E11 to H14 High air flow HEPA Filter E11 to H14 High air flow HEPA Filter Glass fiber paper E11 to H14 High air flow HEPA Filter is special used in the purification system with high air flow and limited space. Specs of E11 to H14 High air flow HEPA Filter Type: HEPA filter with high airflow Media: Glass fiber paper Frame Material: Galvanized steel/Stainless steel/ABS Separator: Hot melt glue Sealant: Polyurethane Recommended final pressure drop: 600Pa Temperature: 90C maximum in continuous service