This product is used for pre-filtration or coarse filtration in the ventilation and air conditioning systemIt’s processed by high-performance PET synthetic fiber with gradual density.Large dust holding capacity, low pressure, be workable many times after cleaningFilter particles: ≥5μmTemperature resistance: 80℃Dimension Rated air velocity (m/s) Initial pressure drop(Pa)Rated air flow (sm/h)Efficiency Dust holding capacity (g/sm) Final pressure(Pa)EN779WeightLength(m)Width(m)Thickness(mm)20 1/215± 21.523540085%520200G3200gTwo types: FTY-150W(without adhesive), FTY-150Y(with adhesive)