ASAHWo: 2 DOE certified models
ASAHWo has 2 dehumidifier basic models certified to DOE as of 2026-11-03, rated 6 to 10 pints/day under the 2019 DOE test. How their efficiency compares with their DOE class is below.
Key findings
- Highest certified water removal among its dehumidifiers: ASAHWo PD35B at 10 pints/day.
Source: DOE Compliance Certification Database (dehumidifiers), data as of 2026-11-03.
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Dehumidifiers
| # | Photo | Model | Labels | Pints/day (2019 test) | IEF, L/kWh | DOE class | Brands | Amazon |
|---|---|---|---|---|---|---|---|---|
| 1 |  | ASAHWoPD35B |
| 10pints/day, 2019 DOE test | 1.3 | up to 25 | 1 | Check price on Amazon |
| 2 | ASAHWoPD20B |
| 6pints/day, 2019 DOE test | 1.3 | up to 25 | 1 |
How efficient are ASAHWo dehumidifiers?
Of the 2 ASAHWo dehumidifiers, none files a higher IEF than the class median: 2 fall below it.
| DOE class | ASAHWo models | Above median | Class median | Best ASAHWo |
|---|---|---|---|---|
| Portable dehumidifiers up to 25 pints/day (253) | 2 | 0 | IEF 1.7 | PD20B IEF 1.3 |
A higher IEF means more water removed per kWh.
Who makes ASAHWo dehumidifiers?
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.
None of the 2 ASAHWo basic models is filed by another brand as of 2026-11-03, and none uses another company's model number. DOE's records tie them to ASAHWo alone.
How much does an ASAHWo dehumidifier cost to run?
Running nonstop at DOE's test conditions, the 2 ASAHWo dehumidifiers with both figures use 2.18 to 3.64 kWh a day. That's about 40¢ to 66¢ a day, or $11.90 to $19.83 for 30 days. The lowest is ASAHWo PD20B (6 pints/day, IEF 1.3) and the highest ASAHWo PD35B (10 pints/day, IEF 1.3).
Real use cycles on and off with the humidity, so these are the upper figures for a day of nonstop running.
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 ASAHWo PD35B compare with other brands?
Picked by rule from models with a matched listing, DOE data as of 2026-11-03.
- Within 3 pints/day of its size, highest IEF: Auseo 42009EDE0-WHITE, 9.45 pints/day. DOE class up to 25 pints/day, IEF 1.92: about 32% less power for the same water removal.
- Nearest size in its class with a higher IEF: waykar PD160B-PRO, 10.17 pints/day. DOE class up to 25 pints/day, IEF 1.91: about 32% less power for the same water removal.
- Nearest bigger unit: ANDTE PD50K, 15.5 pints/day. DOE class up to 25 pints/day, IEF 1.75.
Questions about ASAHWo
- Is ASAHWo a good dehumidifier brand?
- How its 2 dehumidifiers compare on efficiency with their DOE class is above. Both are filed under ASAHWo alone. We don't test reliability, noise or build quality, so we can't rank brands on those. How we compare models.
- Does ASAHWo make a 50 pint dehumidifier?
- No current DOE record shows one as of 2026-11-03. Its largest, ASAHWo PD35B, certifies 10 pints/day under the 2019 DOE test. Boxes that quote the older 80°F test read higher for the same unit. How the 2019 test changed pint ratings.
- Which ASAHWo dehumidifier is the most efficient for its size?
- ASAHWo PD20B and ASAHWo PD35B tie at IEF 1.3: tied with 62 others at DOE's 1.30 minimum.