Device
Water Usage (ml)
Condensate (ml)
Airway Temp. (°C)

HH
2039 ± 387
930 ± 271
36.3 ± 1.2
HH + HWC
766 ± 281
12 ± 16*
37.1 ± 1.0
AHME
135 ± 53
1 ± 3*
36.4 ± 1.7

Branson et al. Critical Care 1999 3(Suppl 1):P017   doi:10.1186/cc392