Breathable gas apparatus with humidifier

A humidifier for delivering humidified breathable gas to a patient, the humidifier comprising:

• a base unit configured to attach to and detach from a flow generator, the base unit comprising an elastomer airway seal, a front cover with an aperture, a rear cover an air port configured to mate with an outlet of the flow generator, the elastomer airway seal fitting between the front and rear covers and connecting the air port to the aperture in the front cover and comprising a peripheral seal portion configured to extend about a periphery of the aperture in the front cover;
• and
• a water container with an inlet and an outlet and comprising a water tub, a seal and a tub lid with a humidified air exit aperture, the water container being attachable to and detachable from the base unit and the water container inlet being located on a rear surface of the tub lid,
• wherein the inlet of the water container is configured to create a sealed air path with the elastomer airway seal upon attaching the water container to the base unit, the sealed air path extending from an outlet of the flow generator to a headspace of the water container,
• wherein the base unit further comprises a heater plate configured to support said water container and be in heat transfer communication with a metal floor of said water container, the metal floor of the water container being of complimentary shape to the heater plate.

A humidifier for delivering humidified breathable gas to a patient, the humidifier comprising:

• a base unit configured to attach to and detach from a flow generator, the base unit comprising a front cover and a rear cover;
• a water container with an inlet and an outlet, the water container being attachable to and detachable from the base unit;
• and
• a sealed air path from an outlet of the flow generator to a headspace of the water container, the sealed air path including an elastomer airway seal that fits between the front and rear covers.

A humidifier for delivering humidified breathable gas to a patient, the humidifier comprising:

• a base unit configured to attach to and detach from a flow generator, the base unit comprising a front cover and a rear cover with an air port configured to mate with an outlet of the flow generator;
• a water container with an inlet and an outlet and comprising a water tub, a seal and a tub lid with a humidified air exit aperture, the water container being attachable to and detachable from the base unit and the water container inlet being located on a rear surface of the tub lid;
• and
• a sealed air path from an outlet of the flow generator to a headspace of the water container, the sealed air path including an elastomer airway seal that fits between the front and rear covers and comprises a peripheral seal portion configured to extend about a periphery of an aperture in the front cover,
• wherein the elastomer airway seal connects the air port to the aperture in the front cover, and
• wherein the base unit further comprises a heater plate configured to support said water container and be in heat transfer communication with a metal floor of said water container, the metal floor of the water container being of complimentary shape to the heater plate.