FRS-30初效過濾棉 •可清洗性強 •初阻力低 •容塵量高 •有彈性 •經濟實用用途：主要過濾對象:≥5μm,:粗塵過濾,尤其適用于空調、火車、地鐵等空氣過濾系統預過濾類型：過濾墊或過濾卷濾料：密度逐級加高的合成纖維,迎風面為藍色可洗性：可反復清洗4-5次EN 779 級別：G3平均計重效率：88%（ASHRAE52.1-1992）EUROVENT4/5級別：EU3DIN 53438 阻燃標準：F1終阻力：（建議）150Pa-（最大）250Pa容塵量：520g/?耐溫：100℃FRS-30 Air inlet cotton •Washable and reusable •Low initial resistance •large dust holding capacity •Flexible •Economical and practicalApplication: ≥5μm, Filter dust , (especial used in the train or the subway, where the place has air-conditioning), pre-filter through air filter programType: supply slices or rolls sizeMedia: synthetic fiber with gradual density, inlet side is blue colorWashable: about 4-5 timesEN779 class: G3Average arrestance:88%（ASHRAE52.1-1992）EUROVENT4/5 class: EU3DIN53438 Non-flammability Standard: F1 Final resistance: (suggest) 150Pa-250PaMax. Dust holding capacity: 520g/?Temp. resistance: 100℃