Abstract: A float for a humidification chamber has formed-in-place conformable seal, which may be accomplished by overmolding a thermoplastic elastomeric material to the float. The float may be comprised of sections sealingly joined together at an elevation above the water level defined by the buoyancy of the float and also above the water level within the humidifier chamber when filled.

Abstract: A chamber-to-reservoir vented humidification system in which the reservoir is an inverted water bottle elevated above the humidification chamber. A vented cap is provided to couple water from the bottle to the chamber via a supply line coupled between a water port of the cap and a water inlet of the chamber, and to provide a vent between the chamber and the bottle via a vent line coupled between a vent port of the cap and a vent of the chamber. A straw couples the vent port to a space within the inverted bottle spaced from the cap, such as above the water line. The vented cap includes a duckbill valve in the vent port.

Abstract: A float for a humidification chamber has formed-in-place conformable seal, which may be accomplished by overmolding a thermoplastic elastomeric material to the float. The float may be comprised of sections sealingly joined together at an elevation above the water level defined by the buoyancy of the float and also above the water level within the humidifier chamber when filled.

Abstract: A humidifier apparatus for operating at an air pressure is disclosed for use with a respiratory therapy breathing apparatus that provides a breathable gas supply to patients requiring higher concentrations of liquid vapor and gas pressure. The humidifier apparatus includes a volume of liquid in fluid communication with a humidifier cartridge via a conduit. The conduit enables air to flow therethrough to equalize air pressure between the humidifier cartridge and the volume of liquid in response to liquid being supplied to the humidifier cartridge.

Abstract: A humidifier apparatus for operating at an air pressure is disclosed for use with a respiratory therapy breathing apparatus that provides a breathable gas supply to patients requiring higher concentrations of liquid vapor and gas pressure. The humidifier apparatus includes a feed liquid supply bag in fluid communication with a humidifier cartridge via a conduit. The conduit enables air to flow therethrough to equalize air pressure between the humidifier cartridge and the feed liquid supply bag in response to liquid being supplied to the humidifier cartridge.

Abstract: A humidifier apparatus for operating at an air pressure is disclosed for use with a respiratory therapy breathing apparatus that provides a breathable gas supply to patients requiring higher concentrations of liquid vapor and gas pressure. The humidifier apparatus includes a feed liquid supply bag in fluid communication with a humidifier cartridge via a conduit. The conduit enables air to flow therethrough to equalize air pressure between the humidifier cartridge and the feed liquid supply bag in response to liquid being supplied to the humidifier cartridge.

Abstract: A humidifier apparatus for operating at an air pressure is disclosed for use with a respiratory therapy breathing apparatus that provides a breathable gas supply to patients requiring higher concentrations of liquid vapor and gas pressure. The humidifier apparatus includes a feed liquid supply bag in fluid communication with a humidifier cartridge via a conduit. The conduit enables air to flow therethrough to equalize air pressure between the humidifier cartridge and the feed liquid supply bag in response to liquid being supplied to the humidifier cartridge.