A.20~180mmHO(0.196~1.765kPa)
B.60~200mmHO(0.558~1.96kPa)
C.100~250mmHO(0.981~2.452kPa)
D.40~100mmHO(0.392~0.981kPa)
E.20~100mmHO(0.196~0.981kPa)