Abstract: The invention discloses a smoke extraction system 10 provided with an infrared smoke detector 16, infrared thermostat 18, A/C sensor 38 and transition door 20. When the smoke detector 16 detects smoke 32 it sends a signal to the thermostat 18 changing the setting to exhaust mode, at the same time the signal is received by the A/C sensor 38 electronics of the transition door 20, which opens the transition door allowing smoke to be vented to the outside. When the air conditioning unit engages the vent mode, the air is vented through the transition door 20 thereby creating a draft that will remove the smoke 32 and vent it outside. The extraction system can be adapted to a central air conditioning system 12.