Table 4 Temperature and humidity of the medical gas with and without the heated humidifier in healthy individuals

CPAP_VENT with HH

31.7 ± 1.0^a,c

32.8 ± 1.7^a,c

98.1 ± 1.4^a,c

CPAP_VENT without HH

27.6 ± 1.3^a,b

12.1 ± 3.4^a,b

45.1 ± 10.9^a,b

CPAP_LF with HH

31.4 ± 0.5^a,c

32.0 ± 0.8^a,c

97.2 ± 1.6^a,c

CPAP_LF without HH

26.4 ± 1.3

7.4 ± 2.2

30.0 ± 8.4

CPAP_HF with HH

28.5 ± 0.8^c

24.6 ± 2.1^c

88.3 ± 4.8^c

CPAP_HF without HH

25.9 ± 1.1

7.1 ± 1.1

29.8 ± 4.8