Keeping: 1 DOE certified model
Keeping has one air purifier basic model certified to DOE as of 2026-11-03, rated smoke CADR 147 cfm. It's the same unit as a model filed under 4 other brands. How its efficiency compares with its DOE class is below.
Source: DOE Compliance Certification Database (air purifiers), data as of 2026-11-03.
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Air purifiers
| # | Photo | Model | Labels | Smoke CADR, cfm | Room size | PM2.5 CADR | CADR/W | Brands | Amazon |
|---|---|---|---|---|---|---|---|---|---|
| 1 |  | KeepingJH25A |
| 147cfm, 228 sq ft | 228 sq ft | 158 | 3.6 | 5 | Check price on Amazon |
How efficient is the Keeping JH25A?
Keeping JH25A files CADR/W 3.6. The median among the 140 models in its DOE class (air purifiers, PM2.5 CADR 150+ cfm) is 5.5, so it's below the median: higher than 13 of the 140.
A higher CADR/W means more clean air per watt.
Who makes Keeping 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 is filed under Keeping's own model number and sold by other brands too, so Keeping is the filer of record for it.
Keeping shares its basic model with 4 other brands. The other brands:
| Basic model | Keeping model | Number belongs to | Brands |
|---|---|---|---|
| JH25A | JH25A | Keeping | 5 |
How much does a Keeping air purifier cost to run?
For Keeping JH25A, DOE's record lists 259 kWh a year, the annual energy figure from DOE's test. That's about $47.03 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 Keeping JH25A 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 4512311000, 161 cfm. Room size 250 sq ft, CADR/W 8.6: about 58% less power for the same clean air.
- Nearest size in its class with a higher CADR/W: LONGSTAR EP-KJTS01-140-25W, 148 cfm. Room size 229 sq ft, CADR/W 6.2: about 42% less power for the same clean air.
- Nearest bigger unit: Sharp KC-850U, 169 cfm. Room size 262 sq ft, CADR/W 3.7.
Questions about Keeping
- Is Keeping a good air purifier brand?
- Its one air purifier basic model, Keeping JH25A, certifies 147 cfm, and its CADR/W of 3.6 is higher than 13 of the 140 in its DOE class (air purifiers, PM2.5 CADR 150+ cfm). It's the same unit as another brand's model. 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 Keeping air purifiers rated for?
- DOE's effective room size for Keeping JH25A is 228 sq ft, from a certified smoke CADR 147 cfm. CADR and room size.
- Is Keeping the same as COWSAR?
- For one unit, yes: both file it under the same DOE basic model (JH25A). Compare the 5 brands of JH25A.