Domestic fans
Industrial fans
Single-room air handling units with heat recovery
Air handling units 
Smoke extraction and ventilation
Ventilation accessories
Ventilation ducts and fittings
Air distribution
Measurement and control technology
Ventilation sets and vents
Box-FI 40x20 4D
Centrifugal fans in sound-insulated casing for rectangular ducts. Maximum air flow up to 1470 m³/h.
Box-FI 40x20 4E
Centrifugal fans in sound-insulated casing for rectangular ducts. Maximum air flow up to 1440 m³/h.
Box-FI 50x25 4D
Centrifugal fans in sound-insulated casing for rectangular ducts. Maximum air flow up to 1850 m³/h.
Box-FI 50x25 4E
Centrifugal fans in sound-insulated casing for rectangular ducts. Maximum air flow up to 1750 m³/h.
Box-FI 50x25 6D
Centrifugal fans in sound-insulated casing for rectangular ducts. Maximum air flow up to 1490 m³/h.
Box-FI 50x25 6E
Centrifugal fans in sound-insulated casing for rectangular ducts. Maximum air flow up to 1460 m³/h.
Box-FI 50x30 4D
Centrifugal fans in sound-insulated casing for rectangular ducts. Maximum air flow up to 2350 m³/h.
Box-FI 50x30 4E
Centrifugal fans in sound-insulated casing for rectangular ducts. Maximum air flow up to 2350 m³/h.
Box-FI 50x30 6D
Centrifugal fans in sound-insulated casing for rectangular ducts. Maximum air flow up to 1620 m³/h.
