
36
Technical characteristics
Sefam S.Box
10 15 20 10 15 20 10 15 20 10 15 20 10 15 20
22 mm diameter tube
Most positive
pressure difference
(cm H
2
O)
0.20
0.25
0.32
0.29
0.32
0.39
0.34
0.40
0.50
0.42
0.49
0.60
0.52
0.61
0.70
Most negative
pressure difference
(cm H
2
O)
0.05
0.09
0.15
0.07
0.13
0.18
0.13
0.15
0.22
0.15
0.19
0.25
0.16
0.18
0.27
Difference in
dynamic pressures
(cm H
2
O)
0.02
0.04
0.04
0.03
0.04
0.05
0.05
0.06
0.08
0.06
0.06
0.07
0.06
0.09
0.09
15 mm diameter tube
Most positive
pressure difference
(cm H
2
O)
0.03
0.08
0.15
-0.02
0.03
0.13
-0.03
0.03
0.12
-0.01
0.04
0.17
0.01
0.08
0.19
Most negative
pressure difference
(cm H
2
O)
0.27
0.33
0.40
0.38
0.43
0.51
0.48
0.53
0.61
0.56
0.62
0.70
0.65
0.70
0.79
Difference in
dynamic pressures
(cm H
2
O)
0.02
0.03
0.03
0.04
0.04
0.05
0.05
0.06
0.06
0.04
0.05
0.08
0.06
0.08
0.09
15 mm diameter tube and fine filter
Most positive
pressure difference
(cm H
2
O)
0.02
0.08
0.14
-0.03
0.02
0.12
-0.04
0.02
0.12
-0.01
0.05
0.17
0.01
0.18
0.18
Most negative
pressure difference
(cm H
2
O)
0.27
0.34
0.42
0.39
0.45
0.53
0.49
0.56
0.65
0.56
0.64
0.76
0.65
0.85
0.85
Difference in
dynamic pressures
(cm H
2
O)
0.02
0.03
0.04
0.04
0.05
0.09
0.06
0.06
0.09
0.06
0.07
0.09
0.07
0.11
0.11
Maximum flow and pressure
(In accordance with ISO 17510-1:2009, annex CC.1 and
ISO 80601-2-70:2015 §201.12.1.103
)
Test pressure (cm H2O)
4
8
12
16
20
W
ITHOUT HUMIDIFIER
Maximum flow (lpm) causing a
pressure drop of 1 cm H
2
O at the
patient port
22 mm diameter tube
>124
>147
210
205
195
15 mm diameter tube
>120
>147
195
190
180
W
ITH HUMIDIFIER
Maximum flow (lpm) causing a
pressure drop of 1 cm H
2
O at the
patient port
22 mm diameter tube
>126
>145
195
190
180
15 mm diameter tube
>125
>145
180
160
150
15 mm diameter tube
and fine filter
>120
>147
150
140
130
Summary of Contents for Sefam S.Box
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