Low-profile, efficient units with up to 12 dual-speed fans Each fan rated at 72cfm (0.034 cu
m/s) in free air Dual 110-120 / 220-240V switch on back of unit Stainless-steel construction Filter replaced from top of unit Ducted units attach to facility ductwork for outside venting 28″(71.1cm) recirculating model includes one charcoal filter 44″(111.8cm) recirculating unit includes two charcoal filters 60″(152.4cm) recirculating unit includes three charcoal filters Specifications Weight: 28″ (71.1cm) Unit: 41 lb
(18.6kg) 44″(111.8cm) Unit: 65 lb
(29.5kg) 60″(152.4cm) Unit: 100 lb
(45.4kg) Power Requirements (each blower): Dual Voltage 110-120V or 220-240V, 50/60Hz, 1 Ph Dimensions (H x W x D): 6 × 28″ or 44″ or 60″ x 6.5″ (15.2 x 71.1 or 111.8 or 152.4 x 16.5cm) Includes: Charcoal filters