There are 3 results, Your applied filters are, air flowrate 620m³/h (ducted), 390m³/h (recirculated), air flowrate ducted 650mâ³/hour, recirculated 350mâ³/hour, air flowrate 789 m³/h, air flowrate ducted 750m³/h, recirculated 750m³/h, air flowrate extracted,