| Fluid | Formula | Critical temp. (˚C) | Critical pressure (bar) | Molar mass (kg/kmol) | Toxicity | Flammability | ODP1 | GWP2 |
| Butane | C4H10 | 150.8 | 37.18 | 58.12 | Low | Very high | 0 | 3 |
| Isobutane | i-C4H10 | 135.9 | 36.85 | 58.12 | Low | Very high | 0 | 3 |
| Pentane | C5H12 | 193.9 | 32.40 | 72.15 | Low | Very high | 0 | 3 |
| R245fa | C3H3F5 | 154.0 | 36.51 | 134.0 | Low | Non-flam | 0 | 1030 |