HEPA (high-efficiency particulate air) standards for facilities such as hospitals and data centers. Our HEPA air filters are rated at 99.99% efficiency for critical particulate filtration. The filters are constructed with galvanized steel frames, mini-pleated wet-laid microglass filtration media in a V-bank style media pack for low-pressure drop and energy efficiency. EFS HV HEPA filters have tremendous durability and long service life. EFS HEPA filters allow for fast and efficient air filtration without affecting the quality of performance and production.