Connections for humidification system

A cartridge for use with a respiratory humidifier, the cartridge comprising:

• a housing comprising a rear surface and at least one securing member extending upwardly beyond an upper extreme of the rear surface of the housing;
• a compartment defined by the housing, an electrical component positioned within the compartment, an electrical connector connected to the electrical component, the rear surface of the housing defining an opening through which the electrical connector is exposed;
• and
• a first outwardly extending pin extending laterally outward beyond an immediately adjacent portion of the housing and a second outwardly extending pin extending laterally outward beyond an immediately adjacent portion of the housing, the first outwardly extending pin and the second outwardly extending pin being deflectable inwardly toward each other,
• the electrical connector being laterally generally interposed between the first outwardly extending pin and the second outwardly extending pin and vertically generally interposed between the first and second outwardly extending pins and the at least one securing member.

A cartridge for use with a respiratory humidifier, the cartridge comprising:

• a housing comprising an upper laterally extending surface, at least one securing member extending upwardly beyond the upper laterally extending surface of the housing,
• the housing comprising a rear surface extending downward from the upper laterally extending surface;
• and
• a first rearwardly protruding element extending rearwardly beyond an immediately adjacent portion of the housing and a second rearwardly protruding element extending rearwardly beyond an immediately adjacent portion of the housing, the first rearwardly protruding element and the second rearwardly protruding element being generally vertically aligned, the first rearward protruding element and the second rearwardly protruding element being positioned vertically lower than the upper laterally extending surface,
• the first rearwardly protruding element comprising a first deflectable portion and the second rearwardly protruding element comprising a second deflectable portion such that the first deflectable portion and the second deflectable portion are deflectable laterally inward toward each other.