QuietScore › Bathroom & Utility Fans › Ortech ODD-70-1
Ortech ODD-70-1 noise level
The Ortech ODD-70-1 is quieter than the category median of 0.7 sones, and its 75 CFM rating makes it suitable for bathrooms up to roughly 75 sq ft. It also meets the stricter ENERGY STAR “Most Efficient” criteria for its category.
Full specifications
| Brand | Ortech |
|---|---|
| Model number | ODD-70-1 |
| Model name | ODD-70-1 |
| Category | Bathroom & Utility Fans |
| Sound level | 0.4 sones (≈27 dBA, approximate) |
| Airflow | 75 CFM |
| Efficiency | 16.7 CFM/W |
| Duct size | 4.00 inch diameter |
| Speeds | 1 |
| Integrated lighting | No |
| ENERGY STAR certified | Yes — Most Efficient |
| On market since | 2024-07-08 |
| Markets | United States, Canada |
Quieter alternatives with similar airflow
| Model | Sones | ≈ dBA | Airflow | Efficiency | |
|---|---|---|---|---|---|
| Broan XB80=XB00HwithXB80F | 0.1 | 7 | 80 CFM | 13.8 CFM/W | specs |
| Greenheck SP-A70 | 0.1 | 7 | 70 CFM | 5.1 CFM/W | specs |
| Greenheck SP-A90L | 0.1 | 7 | 99 CFM | 6.1 CFM/W | specs |
| AUPU BF4-S10CL | 0.1 | 7 | 100 CFM | 9.5 CFM/W | specs |
| Greenheck SP-LP0810W | 0.1 | 7 | 100 CFM | 10 CFM/W | specs |
Similar bathroom & utility fans
| Model | Sones | ≈ dBA | Airflow | Efficiency | |
|---|---|---|---|---|---|
| KORA SBF70N | 0.4 | 27 | 76.5 CFM | 3.8 CFM/W | specs |
| VOTATEC VO-FN4W25-AC-80 | 0.4 | 27 | 80 CFM | 3.5 CFM/W | specs |
| AERO PURE ABF80G15W | 0.4 | 27 | 80 CFM | 4.7 CFM/W | specs |
| AERO PURE ABF80G16W | 0.4 | 27 | 80 CFM | 4.7 CFM/W | specs |
| AUPU AV08A1 | 0.4 | 27 | 80 CFM | 4.7 CFM/W | specs |
Frequently asked questions
How many sones is the Ortech ODD-70-1?
The Ortech ODD-70-1 is certified at 0.4 sones in ENERGY STAR lab testing, which is approximately 27 dBA. That is about as quiet as rustling leaves; most people cannot hear it over ambient room noise.
Is the Ortech ODD-70-1 quiet?
At 0.4 sones, the Ortech ODD-70-1 is quieter than 66% of the 811 certified bathroom & utility fans we track, and quieter than the category median of 0.7 sones.
How powerful is the Ortech ODD-70-1?
It moves 75 CFM, which is adequate for a bathroom of roughly 75 sq ft under the standard 1-CFM-per-square-foot guideline, at an efficiency of 16.7 CFM per watt.
Data provenance: Sound levels are certified lab measurements (sones) reported in the U.S. EPA ENERGY STAR certified products dataset — not manufacturer marketing claims. Source: ENERGY STAR Certified Ventilating Fans (US EPA), last fetched 2026-06-13. The dBA figure is an approximate conversion from sones — see our methodology.