Ventilator HEPA filter material production factory, low filter element resistance, high filtration efficiency, BFE≥99.999%, HMEF dedicated filter We are a professional factory manufacturing HEPA filter materials for ventilators. This filter medium is specially designed for HMEF filters. It achieves excellent bacterial filtration performance with BFE ≥99.999%, effectively intercepting bacteria and fine particulate matter in the airflow to protect patients’ respiratory tracts