Dunham-Bush International (Africa) Pty Ltd. has participated in the Frigair Exhibition 2015 held at Gallagher Convention Centre, Johannesburg, South Africa. Frigair Exhibition is Africa’s only dedicated Heating, Ventilation, Air Conditioning, Refrigeration and Energy event has attracted many visitors from the African continent as well as internationally. Dunham-Bush has introduced its new energy efficiency “inverter driven” rooftop packaged together with its VRF units.