Standard

TT Type

Oxygen flow rate (l/min)

2

3

4

5

6

7

8

9

10

11

12

13

14

15

ISO 15002

PCTT

8%

15%

37%

45%

38%

43%

37%

43%

30%

41%

32%

42%

36%

40%

NPCTT

17%

23%

25%

31%

27%

29%

25%

28%

24%

31%

24%

32%

26%

31%

CGA

PCTT

36%

38%

45%

45%

38%

43%

37%

43%

30%

41%

32%

42%

36%

40%

NPCTT

48%

39%

31%

31%

27%

29%

25%

28%

24%

31%

24%

32%

26%

31%