Please note
All timings on this page are approximate and can change depending on how fast the patient is breathing.
Companion T Flask

Weight when full
3.9kg (8.6 lb)
Companion T flask durations
| Flow rate (lpm) | Continuous flow |
| 1 | 12 hours |
| 2 | 8 hours 30 mins |
| 3 | 6 hours |
| 4 | 4 hours 15 mins |
| 5 | 3 hours |
| 6 | 2 hours 30 mins |
| 8 | 2 hours |
| 10 | 1 hour 30 mins |
| 15 | 50 mins |
High Flow Stroller Flask

Weight when full
3.6kg (8 lb)
High Flow Stroller flask durations
| Flow rate (lpm) | Continuous flow |
| 0.5 | 32 hours |
| 1 | 16 hours |
| 2 | 8 hours |
| 2.5 | 6 hours 20 mins |
| 3 | 5 hours 20 mins |
| 4 | 4 hours |
| 6 | 2 hours 40 mins |
| 8 | 2 hours |
| 10 | 1 hour 40 mins |
| 12 | 1 hours 20 mins |
| 15 | 1 hour |
Marathon Flask

Weight when full
2.5 kg (5.5 lb)
Marathon flask durations
| Flow rate (lpm) | Demand flow | Continuous flow |
| 1 | n/a | 10.5 hours |
| 1.5 | 22.5 hours | n/a |
| 2 | 18.5 hours | 5.5 hours |
| 2.5 | 16 hours | n/a |
| 3 | 11.5 hours | 3.5 hours |
| 4 | 9.5 hours | 2.5 hours |
| 5 | n/a | 2 hours |
| 6 | n/a | 1.5 hours |
Helios Flask

Weight when full
1.6 kg (3.6 lb)
Helios flask durations
| Flow rate (lpm) | Demand flow | Continuous flow |
| 0.12 | n/a | 15 hours |
| 0.25 | n/a | 15 hours |
| 0.5 | n/a | 10 hours |
| 0.75 | n/a | 6.5 hours |
| 1 | 13 hours | n/a |
| 1.5 | 12 hours | n/a |
| 2 | 10 hours | n/a |
| 2.5 | 8.5 hours | n/a |
| 3 | 6.5 hours | n/a |
| 3.5 | 6 hours | n/a |
| 4 | 5 hours | n/a |
Spirit 600 Flask

Weight when full
2.5 kg (5.6 lb)
Spirit 600 flask durations
| Flow rate (lpm) | Demand flow | Continuous flow |
| 1 | 17 hours | n/a |
| 2 | 17 hours | 4 hours |
| 3 | 12 hours | n/a |
| 4 | 8 hours | n/a |
| 5 | 4 hours | n/a |