Tunal Aerofoil Blades-400mm

• Glazed in acoustic ventilator suitable for high level Elevations
• Can accommodate glass thickness between 24-32mm
• Self Regulating
• Can have 5 different air flow options
• Equivalent area between 12089 to 24482 mm2/m
• 26 Dnew Acoustic performance in the open position

• Over frame acoustic ventilator
• Can fit onto windows or doors with a depth between 50-194mm
• Self Regulating
• Equivalent area 14125 mm2/m
• 32 Dnew Acoustic performance in the open position