Product Description:VFE ≥99.9% BFE≥99.99% Filter for Bacterial and viral Filters &BV filter My company is the manufacturer The Bacterial Viral Filter Paper is a highly efficient medical filter designed for various applications including HME Filter, BV Filter, and spirometry Filter. This Sterile EO Disposable Filter is an essential component in medical settings, providing exceptional protection against bacteria and viruses. With a Bacterial Filtration Efficiency (BFE) of ≥99