Features: 1) Collect 5 micron and larger particles 2) Large airflow 3) Low resistance 4)washable 5) Large dust holding capacity 6) Long service life 7) Stable construction 8) Dimensions: 595 x 595 x 46mm 8) Media: active carbon 9) Frame: aluminum alloy, galvanized plate 10) OEM orders with customized designs and specifications welcomed