KORA SBF90NvsTech Drive TD-BF-11
Side-by-side ventilating fan comparison
KORA SBF90N
Airflow
94CFM
Efficacy
3.8CFM/W
Sound Level
0.8sones
Type
Bathroom/Utility Room
Tech Drive TD-BF-11
Airflow
90CFM
Efficacy
4CFM/W
Sound Level
1.5sones
Type
Bathroom/Utility Room
Key differences
Tech Drive TD-BF-11 is 5% more efficient at 4.0 CFM/W versus 3.8 CFM/W for the KORA SBF90N. The KORA SBF90N is larger at 94 CFM versus 90 CFM. Overall, the Tech Drive TD-BF-11 sits higher in the category, ranking above 29% of certified ventilating fans.
Performance
| Spec | KORA | Tech Drive |
|---|---|---|
| Airflow(CFM) | 94 | 90 |
| Efficacy(CFM/W) | 3.8 | 4 |
| Sound Level(sones) | 0.8 | 1.5 |
| Number of Speeds | 1 | 1 |
Installation
| Spec | KORA | Tech Drive |
|---|---|---|
| Unit Type | Bathroom/Utility Room | Bathroom/Utility Room |
| Duct Size | 4.00 inch diameter | 4.00 inch diameter |
| Airflow at 0.25 in w.g.(CFM) | — | 82 |
| Sound at 0.25 in w.g.(sones) | — | 0 |
Lighting
| Spec | KORA | Tech Drive |
|---|---|---|
| Includes Lighting | No | No |
| Ships with ENERGY STAR Lamp | No | No |