Humidivent Fans operate automatically from adjustable pre-set humidity levels. Performance up to 111 m3/hr. MAIN FEATURES: Pre-set humidity (70% RH) but fully adjustable between 20-80% RH Thermally protected motor Modular construction allows for easy installation and maintenance Auto sensitivity reduces unnecessary fan operation overnight Complies with Building Regulations (F1-1995) Can be surface mounted or recessed into walls/ceilings using bezel supplied Integral magnetic backdraft flap |