Fan Filter Unit, Deep Pleated HEPA Filter, HEPA Filter for Air Purifier manufacturer / supplier in China, offering Gel Type Pleated HEPA Filter High Efficiency for HVAC System /Operating Room /Pharmaceutical Plants, High Temperature 250º C H13 H14 HEPA Air Filter for Hospital//Laboratory/Food Factory, G3 G4 Primary Efficiency Panel Pleated Air Filter Mesh Grid Expanded Aluminum Mesh for Air Syetem and so on.