... 5 micron particles, High airflow, Low resistance, Large dust holding capacity, Long operationg life.Specifications:Filter Efficiency ... plastic box for the material. FEATURESUSESFILTER MEDIAPROTECTING FRAMEGRADELarge filtering surface ,Light weightCompact structure,Economical and practicalAvailable for ... need to set up primary filtration granule whille filtering.It is easy to clean dust from ...