This powerful portable ventilator is very popular in the construction, engineering and Industrial Industry. Features: -Metal. -Low noise and lightweight design makes it the ideal machine for the hire Industry. -Workshops for fuel extraction. -Dust Extraction for painters/carpentry. -Event Cooling where air movement is required. -Overall ability to switch from cooling to extraction make this an extremely versatile machine. -This machine is used in conjunction with the 5Mtr flexible duct. These ducts can be linked together for increased distances.