Central extraction unit with negative pressure
- capacity 27,000 m³/h
(expandable to 36,000 m³/h) 
- As per norms ATES 153 / St1 
- total installed power: 34.10 kW
- 6 fans in cascade
- filter surface  300m²
- compressed air cleaning
- Suction pipe diameter 400mm
- sluice filter (2x rotary sluice)
  Connection outlet diameter 200mm
- Siemens control cabinet
- 2 hot air recovery ducts 700 x 700 mm
    with summer/winter valve
consisting of 3 parts
dimensions (installed): 7.5 x 2.45 x 7.5 m
weight: approx. 7,000 kg