• Casing, filter cover, sides, grille and base moulded from impact-resistant thermoplastic material, colour black. • 3 speed motor with thermal overload protection and double extension shaft turning in self-lubricating bushings, coupled to 2 impellers made of thermoplastic material; vibration eliminated by rubber dampers located between motor and mounting. • Aluminium mesh prefilter. • Electrostatic filter, electronically controlled. • Granular activated carbon filter. • Ionizing electrodes selectable by way of dedicated switch. • On/off switch. • Fan speed controlled by 3-position rotary switch. • Base interchangeable with one side to allow floor-standing operation. • Power cord with moulded plug. • IMQ safety certification.