| Unit of measurement | TT Silent 125 | ||
| Speed | - | 1 | 2 |
| Connected air duct size | in | 5” | |
| Minimum supply voltage | V | 120 | |
| Maximum supply voltage | V | 120 | |
| Power supply frequency | Hz | 60 | |
| Rated power | W | 23 | 36 |
| Maximum unit current | A | 0.2 | 0.29 |
| Maximum performance @0.2" | CFM | 70 | 160 |
| Rotation speed at 60hz | - | 1990 | 2303 |
| Sound level | Sones | 0.6 | 1.3 |