13.11 Breathing circuits and accessories
Note that the table applies to the breathing circuits recommended by Maquet.
Breathing circuits and accessories
Compliance • 10 mm breathing circuits: <0.4 ml/cmH
2
O
• 15 mm breathing circuits: <0.7 ml/cmH
2
O
• 22 mm breathing circuits: <1.4 ml/cmH
2
O
Internal volume • 10 mm breathing circuits: 0.4 l
• 15 mm breathing circuits: 0.7 l
• 22 mm breathing circuits: 1.4 l
Flow resistance in each limb
including Y-piece
• 10 mm breathing circuits:
• At 2.5 l/min: <3.0 cmH
2
O/l/s
• At 15 l/min: <6.0 cmH
2
O/l/s
• At 30 l/min: <10 cmH
2
O/l/s (30 l/min not applicable for intended
patient tidal volume range)
• 15 mm breathing circuits:
• At 2.5 l/min: <1.5 cmH
2
O/l/s
• At 15 l/min: <1.5 cmH
2
O/l/s
• At 30 l/min: <2 cmH
2
O/l/s
• 22 mm breathing circuits:
• At 2.5 l/min: <0.5 cmH
2
O/l/s
• At 15 l/min: <0.7 cmH
2
O/l/s
• At 30 l/min: <1.0 cmH
2
O/l/s
Flow resistance for angled
adapter
• At 2.5 l/min: <0.2 cmH
2
O/l/s
• At 15 l/min: <0.6 cmH
2
O/l/s
• At 30 l/min: <1.0 cmH
2
O/l/s
Flow resistance for 22 mm joint
adapter
• At 2.5 l/min: <0.2 cmH
2
O/l/s
• At 15 l/min: <0.2 cmH
2
O/l/s
• At 30 l/min: <0.2 cmH
2
O/l/s
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