QuietScore › Bathroom & Utility Fans › Delta ITG50
Delta ITG50 noise level
The Delta ITG50 is exactly at the category median of 0.7 sones, and its 50 CFM rating makes it suitable for bathrooms up to roughly 50 sq ft. It also meets the stricter ENERGY STAR “Most Efficient” criteria for its category.
Full specifications
| Brand | Delta |
|---|---|
| Model number | ITG50 |
| Model name | BreezIntegrity |
| Category | Bathroom & Utility Fans |
| Sound level | 0.7 sones (≈35 dBA, approximate) |
| Airflow | 50 CFM |
| Efficiency | 12.3 CFM/W |
| Duct size | 4 inch diameter |
| Speeds | 1 |
| Integrated lighting | No |
| ENERGY STAR certified | Yes — Most Efficient |
| On market since | 2016-11-11 |
| Markets | United States, Canada |
Quieter alternatives with similar airflow
| Model | Sones | ≈ dBA | Airflow | Efficiency | |
|---|---|---|---|---|---|
| Greenheck SP-A70 | 0.1 | 7 | 70 CFM | 5.1 CFM/W | specs |
| Broan XB80=XB00HwithXB80F | 0.1 | 7 | 80 CFM | 13.8 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 | |
|---|---|---|---|---|---|
| Broan-Nutone BENL5 | 0.7 | 35 | 50 CFM | 3.4 CFM/W | specs |
| Delta 50F-LED ME | 0.7 | 35 | 50 CFM | 10.8 CFM/W | specs |
| Delta ITG50LED ME | 0.7 | 35 | 50 CFM | 10.8 CFM/W | specs |
| HomeWerks Worldwide 7141-50-G4 | 0.7 | 35 | 50 CFM | 2.9 CFM/W | specs |
| Air King BFQ50 | 0.6 | 33 | 50 CFM | 2.9 CFM/W | specs |
Frequently asked questions
How many sones is the Delta ITG50?
The Delta ITG50 is certified at 0.7 sones in ENERGY STAR lab testing, which is approximately 35 dBA. That is comparable to a quiet modern refrigerator humming in the next room.
Is the Delta ITG50 quiet?
At 0.7 sones, the Delta ITG50 is quieter than 49% of the 811 certified bathroom & utility fans we track, and exactly at the category median of 0.7 sones.
How powerful is the Delta ITG50?
It moves 50 CFM, which is adequate for a bathroom of roughly 50 sq ft under the standard 1-CFM-per-square-foot guideline, at an efficiency of 12.3 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.