Abstract: Disclosed herein is a sample gas filter assembly for a therapeutic gas delivery device. The sample gas filter assembly can have a filter apparatus, a water-permeable tubular membrane, and a ventilated cap. The sample gas filter assembly may be configured for maintaining a condensate pH from an assembly for humidity conditioning and filtering a sample gas in a therapeutic gas delivery device.

Abstract: In embodiments, a battery system includes battery cell modules. Each battery cell module has a positive lead and a negative lead. The battery system includes a bus bar disposed to be in electrical communication with a positive lead of a first battery cell module and a negative lead of a second battery cell. The bus bar includes heat exchange members in thermal communication with a surrounding working fluid. Each heat exchange member's first dimension is a distance between the positive lead and the negative lead and second dimension is a distance from a bottom of a heat exchange member the plurality of heat exchange members in contact with the positive and negative leads to a top of the heat exchange member. The thermal communication with the working fluid occurs over the length of the first dimension. A ratio of the first dimension to the second dimension is at least 2:5.

Abstract: Disclosed herein is a sample gas filter assembly for a therapeutic gas delivery device. The sample gas filter assembly can have a filter apparatus, a water-permeable tubular membrane, and a ventilated cap. The sample gas filter assembly may be configured for maintaining a condensate pH from an assembly for humidity conditioning and filtering a sample gas in a therapeutic gas delivery device.