A circuit connector (1500) configured for use with a humidification system, the humidification system comprising a base unit and a humidification chamber (1104), the circuit connector comprising:an inlet configured to provide a fluid connection to an outlet of the humidification chamber to receive heated and/or humidified gases therefrom；an outlet configured to provide a fluid connection to a conduit for directing the heated and/or humidified gases to or from a patient or other person；an electrical terminal configured to provide an electrical connection to an electrical terminal associated with the base unit； andan orientator configured to orientate the circuit connector relative to the outlet of the humidification chamber.
