This series is the economic development of the ceiling filters, we use the longer hot melt anti-broken synthetic fiber and high quality water resin for this series. Compared with TWA-1 series, the air flow rate was increased. It is suitable for the lower required working areas. Model VIF-560/520G Weight: 560/520gr/sqm Thickness: 20/20mm Air Flow Rate: 936/970m³ /h Initial Resistance: 23/22pa Final Resistance: 400/400pa Medium Arrestance: 93.10/92.50% Air Velocity: 0.26/0.27m/s Dust Holding: 375/362gr/sqm Max Temperature: 120/120º C Filtration Class: F-5(DIN 24185) Flame Resistance: F-1(DIN 53438)
