Venturi performance with home oxygen concentrator
| Venturi % | Flow rate | Oxygen concentration | Concentrator outlet pressure (psig) and back pressure | Oxygen concentration post Venturi % | |
| Intersurgical Venturi barrels | |||||
| 24 | 2 | 94.0 | 19.4 | 7.0 | 22.8 |
| 28 | 4 | 94.1 | 19.4 | 0.6 | 26.0 |
| 31 | 6 | 95.8 | 19.4 | 0.3 | 28.7 |
| 35 | 8 | 84.7 | 19.4 | 0.2 | 33.2 |
| Salter labs Venturi barrels | |||||
| 24 | 4 | 94.1 | 19.4 | 12.0 | 23.7 |
| 28 | 4 | 94.1 | 19.4 | 0.9 | 26.0 |
| 31 | 6 | 95.8 | 19.4 | 0.6 | 28.0 |
| 35 | 8 | 84.7 | 19.4 | 0.4 | 30.5 |
| Respironics | |||||
| 24 | 3 | 94.5 | 19.4 | 1.50 | 22.0 |
| 28 | 6 | 95.8 | 19.4 | 0.5 | 27.2 |
| 35 | 10* | 95.0 | 19.4 | 0.3 | 36.9 |
↵* In order to deliver 10 l flow rate 2 Intensity concentrators were used.