Atmosphere SKY: 1 DOE certified model
Atmosphere SKY has one air purifier basic model certified to DOE as of 2026-11-03, rated smoke CADR 316 cfm. How its efficiency compares with its DOE class is below.
Source: DOE Compliance Certification Database (air purifiers), data as of 2026-11-03.
Air purifiers
| # | Photo | Model | Labels | Smoke CADR, cfm | Room size | PM2.5 CADR | CADR/W | Brands |
|---|---|---|---|---|---|---|---|---|
| 1 | Atmosphere SKY120539 |
| 316cfm, 489 sq ft | 489 sq ft | 310 | 6.1 | 1 |
How efficient is the Atmosphere SKY 120539?
Atmosphere SKY 120539 files CADR/W 6.1. The median among the 140 models in its DOE class (air purifiers, PM2.5 CADR 150+ cfm) is 5.5, so it's above the median: higher than 88 of the 140.
A higher CADR/W means more clean air per watt.
Who makes Atmosphere SKY air purifiers?
DOE's database has no manufacturer field, so the evidence is whose model number each unit is filed under and which other brands file the same unit.
Its one basic model isn't filed by any other brand as of 2026-11-03, and the model number isn't another company's. DOE's records tie it to Atmosphere SKY alone.
How much does an Atmosphere SKY air purifier cost to run?
For Atmosphere SKY 120539, DOE's record lists 298 kWh a year, the annual energy figure from DOE's test. That's about $54.12 a year.
At 18.16¢ per kWh, the US average residential price for August 2026 (EIA Electric Power Monthly, table 5.6.A). Worked out from the certified figures.
How does Atmosphere SKY 120539 compare with other brands?
Picked by rule from models with a matched listing, DOE data as of 2026-11-03.
- Within 20 cfm of its size, highest CADR/W: Blueair 4412311000, 321 cfm. Room size 498 sq ft, CADR/W 10.2: about 40% less power for the same clean air.
- Nearest size in its class with a higher CADR/W: LG AS601HBB0, 305 cfm. Room size 473 sq ft, CADR/W 6.6: about 8% less power for the same clean air.
- Nearest bigger unit: Winix C909, 337 cfm. Room size 522 sq ft, CADR/W 4.
Questions about Atmosphere SKY
- Is Atmosphere SKY a good air purifier brand?
- Its one air purifier basic model, Atmosphere SKY 120539, certifies 316 cfm, and its CADR/W of 6.1 is higher than 88 of the 140 in its DOE class (air purifiers, PM2.5 CADR 150+ cfm). We don't test reliability, noise or build quality, so we can't rank brands on those. How we compare models.
- What room size are Atmosphere SKY air purifiers rated for?
- DOE's effective room size for Atmosphere SKY 120539 is 489 sq ft, from a certified smoke CADR 316 cfm. CADR and room size.