| Cylinder name and manufacturer | Usage | Weight (kg) | Capacity (l) | Duration (h) at 0.5 l/min | Duration (h) at 1.0 l/min | Duration (h) at 2.0 l/min |
| B10Air Products | Back-up | 15.0 | 2122 | 70.7 | 35.4 | 17.7 |
| ZH2400BOC Medical | Back-up | 13.9 | 2400 | – | 40.0 | 20.0 |
| CDAir Products | Home use | 4.1 | 460 | 15.0 | 7.0 | – |
| PD430Air Liquide | Standard portable | 3.7 | 430 | – | 7.2 | 3.6 |
| Freedom 600Air Products | High capacity portable | 3.2 | 617 | 20.5 | 10.3 | 5.1 |
| Freedom 400Air Products | Standard portable | 3.2 | 430 | 14.3 | 7.2 | 3.6 |
| DD460BOC Medical | Standard portable | 3.2 | 460 | – | – | 3.8 |
| ZC300BOC Medical | Light weight portable | 2.7 | 300 | 10.0 | 5.0 | 2.5 |
| 215Air Liquide | Light weight portable | 2.7 | 215 | – | 3.5 | 1.6 |
| Freedom 300Air Products | Light weight portable | 2.1 | 308 | 10.3 | 5.1 | 2.6 |
All durations are for use without a conserver device. Information for equipment taken from websites (Air Products: www.airproducts.co.uk; BOC Medical: www.vitalair.co.uk; Air Liquide: www.uk.airliquide.com).