Product features: high efficiency, low resistance, high dust holding capacity, wind uniformity, product-by-station leak detection and scanning of the test material and performance: box material: aluminum alloy frame, stainless steel frame, galvanized frame filter: Superfine glass fiber filter paper, chemical fiber paper Sealant: Polyurethane plastic dividers: aluminum foil or paper separator efficiency: 99.97%, 99.99%, 99.999% (DEHS counting method) Usage: air purification equipment and a variety of local clean room purification