Figure 2From: Effect of heat and moisture exchanger (HME) positioning on inspiratory gas humidificationAbsolute humidity (AH) with Hygrobac S or Thermovent HEPA placed at Site 1 or Site 2. AH was significantly higher when Hygrobac S (closed circle)(*p < 0.05) was placed at Site 1 than at Site 2, and when Thermovent HEPA (open circle)(**p < 0.05) was placed at Site 1 than at Site 2. Patient N = 10. Data presented as mean ± SD.Back to article page