Most Energy-Efficient Dehumidifiers: ENERGY STAR's Numbers, Ranked
The most energy-efficient dehumidifiers, ranked on ENERGY STAR's certified efficiency and annual kWh, with Most Efficient small units and a whole-home pick.
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The most energy-efficient portable dehumidifier we found on Amazon is the avylo ADC018: ENERGY STAR certifies it at 24.50 pints a day and 2.05 liters per kWh, flags it as meeting its Most Efficient criteria, and estimates 257 kWh a year, about $44 at the 2025 US average electricity price. For a 50-pint-class job, the Midea Cube 50 meets ENERGY STAR's 2.01 L/kWh floor at 49.67 pints a day. For a whole basement or sealed crawlspace, the AprilAire E080 is certified at 2.35 L/kWh.
Every figure here comes from ENERGY STAR's certified product data, not from listing titles. We ranked picks within each capacity class, because a small unit always uses less electricity than a big one and the right comparison is efficiency at the size you need.
Our top picks at a glance
1. Most efficient small unit
avylo ADC018 Dehumidifier with PumpDOE capacity: 24.50 pints/day · IEF (L/kWh): 2.05 · Annual energy: 257 kWh (about $44) · Most Efficient: Yes
2. Best efficient small unit from a major brand
Levoit 25-Pint Dehumidifier with Pump (LDH-H251S)DOE capacity: 24.54 pints/day · IEF (L/kWh): 1.88 · Annual energy: 281 kWh (about $48) · Most Efficient: Yes
3. Simplest efficient small unit
Whirlpool 25-Pint Dehumidifier (WHAD251AW)DOE capacity: 24.84 pints/day · IEF (L/kWh): 1.85 · Annual energy: 283 kWh (about $49) · Most Efficient: Yes
4. Best efficient 50-pint class
Midea Cube 50-Pint DehumidifierDOE capacity: 49.67 pints/day · IEF (L/kWh): 2.01 · Annual energy: 515 kWh (about $89) · Most Efficient: No
5. Most efficient whole-home
AprilAire E080 Whole-Home DehumidifierDOE capacity: 65.00 pints/day (whole-home test) · IEF (L/kWh): 2.35 · Annual energy: 632 kWh (about $109) · Most Efficient: Yes
| Pick | DOE capacity | IEF (L/kWh) | Annual energy | Most Efficient | Buy |
|---|---|---|---|---|---|
| avylo ADC018 Dehumidifier with PumpMost efficient small unit | 24.50 pints/day | 2.05 | 257 kWh (about $44) | Yes | Amazon |
| Levoit 25-Pint Dehumidifier with Pump (LDH-H251S)Best efficient small unit from a major brand | 24.54 pints/day | 1.88 | 281 kWh (about $48) | Yes | Amazon |
| Whirlpool 25-Pint Dehumidifier (WHAD251AW)Simplest efficient small unit | 24.84 pints/day | 1.85 | 283 kWh (about $49) | Yes | Amazon |
| Midea Cube 50-Pint DehumidifierBest efficient 50-pint class | 49.67 pints/day | 2.01 | 515 kWh (about $89) | No | Amazon |
| AprilAire E080 Whole-Home DehumidifierMost efficient whole-home | 65.00 pints/day (whole-home test) | 2.35 | 632 kWh (about $109) | Yes | Amazon |
Most efficient small unit
avylo ADC018 Dehumidifier with Pump
The highest certified efficiency in the 25-pint class among the units we found on Amazon, with a pump.
- DOE capacity
- 24.50 pints/day
- IEF (L/kWh)
- 2.05
- Annual energy
- 257 kWh (about $44)
- Most Efficient
- Yes
Pros
- 2.05 L/kWh, well above the 1.70 class minimum
- Built-in pump and three drainage options (per the Amazon listing)
- 5-year manufacturer warranty (per the Amazon listing)
Cons
- Sold by a third-party seller on Amazon
- Listing title quotes "max 90 pints"; the certified figure is 24.50
- Small-space capacity only
ENERGY STAR's data puts the ADC018 at 24.50 pints a day and 2.05 L/kWh, the best efficiency in the up-to-25-pint class among the models we could match to a current Amazon listing. Its estimated 257 kWh a year comes to about $44.20 at the EIA's 2025 average of 17.2 cents per kWh. The listing adds a pump, a top-mounted tank and a 5-year warranty.
It is sold by a third-party seller rather than Amazon or a large brand, so check the return terms. Skip it for a very wet basement; it is a 25-pint-class unit.
Best efficient small unit from a major brand
Levoit 25-Pint Dehumidifier with Pump (LDH-H251S)
Most Efficient, sold by Amazon, with a removable pump and a clearly labeled DOE rating.
- DOE capacity
- 24.54 pints/day
- IEF (L/kWh)
- 1.88
- Annual energy
- 281 kWh (about $48)
- Most Efficient
- Yes
Pros
- Listing states the DOE condition (65°F, 60% RH)
- Removable pump up to 9.8 ft (per the Amazon listing)
- 3-year compressor warranty (per the Amazon listing)
Cons
- Lower IEF than the avylo
- App needs Levoit's VeSync service
- Small-space capacity
Levoit's listing is one of the few that leads with the DOE figure: 25 pints a day at 65°F and 60% relative humidity. ENERGY STAR certifies 24.54 pints at 1.88 L/kWh with the Most Efficient designation, and estimates 281 kWh a year, about $48.33. It is sold by Amazon and includes a MERV 11 filter and a removable pump, per the listing.
Choose it over the avylo if you prefer a major brand and Amazon as the seller. Skip it if you need more than 25 pints a day.
Simplest efficient small unit
Whirlpool 25-Pint Dehumidifier (WHAD251AW)
A no-app, Most Efficient 25-pint unit with a front bucket and casters.
- DOE capacity
- 24.84 pints/day
- IEF (L/kWh)
- 1.85
- Annual energy
- 283 kWh (about $49)
- Most Efficient
- Yes
Pros
- Most Efficient designation
- As low as 45 dBA (per the Amazon listing)
- Simple electronic controls and a reusable filter
Cons
- No pump
- No Wi-Fi, if you want app control
- Slightly lower IEF than the Levoit
ENERGY STAR certifies the WHAD251AW at 24.84 pints a day and 1.85 L/kWh, with the Most Efficient designation and an estimated 283 kWh a year (about $48.68). Whirlpool's listing describes electronic controls, an adjustable humidistat, a color-coded humidity indicator, casters and a front bucket or hose drain.
Pick it if you want a plain appliance with no app. Skip it if your drain is above the unit; it has no pump.
Best efficient 50-pint class
Midea Cube 50-Pint Dehumidifier
Near 50 pints a day at the class's 2.01 L/kWh floor, with a large bucket.
- DOE capacity
- 49.67 pints/day
- IEF (L/kWh)
- 2.01
- Annual energy
- 515 kWh (about $89)
- Most Efficient
- No
Pros
- Twice the capacity of the small picks
- 4.2-gallon bucket (per the Amazon listing)
- Nests for storage (Midea)
Cons
- Not Most Efficient
- Higher annual energy than small units, because it removes more water
- No pump
For a wet basement, a 25-pint unit running flat out is less useful than a 50-pint unit cycling. The Cube is certified at 49.67 pints a day and 2.01 L/kWh, exactly the ENERGY STAR minimum for the 25.01-to-50-pint class; the Frigidaire FHDD5034Y1 and Midea's pump model carry the same IEF. ENERGY STAR estimates 515 kWh a year, about $88.58.
Skip it if your space is only moderately damp; a 25-pint Most Efficient unit will use less electricity. See our Midea Cube review.
Most efficient whole-home
AprilAire E080 Whole-Home Dehumidifier
The highest IEF of our picks, for large basements and sealed crawlspaces with a proper install.
- DOE capacity
- 65.00 pints/day (whole-home test)
- IEF (L/kWh)
- 2.35
- Annual energy
- 632 kWh (about $109)
- Most Efficient
- Yes
Pros
- 2.35 L/kWh, above the 2.22 whole-home minimum for its case size class
- Pump, hose and hanging kit included (per the Amazon listing)
- 6-year warranty (per the Amazon listing)
Cons
- Much higher purchase cost
- ENERGY STAR advises professional sizing and installation
- Whole-home capacity is tested differently from portables
Whole-home dehumidifiers have their own ENERGY STAR criteria, set by case volume: at least 2.22 L/kWh up to 8 cubic feet and 3.81 above. The E080 is certified at 65.00 pints a day and 2.35 L/kWh with the Most Efficient designation, and an estimated 632 kWh a year (about $108.70). It drains through a pump or pipe, so it can run unattended for months.
Skip it unless you need whole-basement or crawlspace control; ENERGY STAR says whole-home units should be sized and installed by a professional. See dehumidifiers for crawlspaces.
How we chose
We downloaded ENERGY STAR's certified dehumidifier list (571 models when we read it in November 2026), matched models to current Amazon listings by model number, and ranked them by integrated energy factor within each capacity class. Annual energy and the Most Efficient flag are ENERGY STAR's; costs use the EIA's 2025 US average of 17.2 cents per kWh.
How to read dehumidifier efficiency
IEF
The integrated energy factor is liters of water removed per kWh of electricity, under DOE's test procedure. Higher is better. Two units with the same capacity but IEFs of 1.70 and 2.05 differ by about 17% in electricity for the same water removed.
ENERGY STAR's classes
| Type | Class | Minimum IEF (L/kWh) |
|---|---|---|
| Portable | Up to 25.00 pints/day | 1.70 |
| Portable | 25.01 to 50 pints/day | 2.01 |
| Portable | 50 pints/day and above | 3.30 |
| Whole-home | Case volume up to 8.0 ft³ | 2.22 |
| Whole-home | Case volume above 8.0 ft³ | 3.81 |
Note the jump at 50 pints: most "50-pint" portables are certified just under 50 (49.67 for the Cube, 49.71 for the Frigidaire FHDD5034Y1), which keeps them in the 2.01 class.
Annual energy and cost
| Model | DOE pints/day | IEF | kWh/year | Cost/year |
|---|---|---|---|---|
| avylo ADC018 | 24.50 | 2.05 | 257 | $44.20 |
| Levoit LDH-H251S | 24.54 | 1.88 | 281 | $48.33 |
| Whirlpool WHAD251AW | 24.84 | 1.85 | 283 | $48.68 |
| hOmeLabs HME0089 | 32.46 | 2.01 | 343 | $59.00 |
| Midea Cube 50 | 49.67 | 2.01 | 515 | $88.58 |
| AprilAire E080 (whole-home) | 65.00 | 2.35 | 632 | $108.70 |
Using less electricity with any dehumidifier
- Set it to 50%, not 35%. ENERGY STAR says the optimum is generally 30 to 50%; every point lower costs more run time.
- Close the space. ENERGY STAR advises keeping doors and windows closed while it runs.
- Give it airflow and keep it clean. ENERGY STAR says to keep units without top discharge away from walls and furniture, and away from dust that clogs coils.
- Fix the water source. EPA says the key to mold control is moisture control; a leak or poor drainage will keep a dehumidifier running.
- Size it right. ENERGY STAR says it is better to oversize than undersize; an undersized unit runs constantly. Try our sizing calculator.
For overall picks, see the best dehumidifiers; for the humidity target, the humidity level that prevents mold.
Frequently asked questions
What is the most energy-efficient dehumidifier?
Among models we matched to Amazon listings, the avylo ADC018 had the highest certified efficiency in the small class at 2.05 L/kWh, and the AprilAire E080 the highest whole-home efficiency at 2.35 L/kWh, per ENERGY STAR.
What is a good IEF for a dehumidifier?
Above ENERGY STAR's minimum for its class: 1.70 L/kWh up to 25 pints a day and 2.01 for 25.01 to 50. Models flagged Most Efficient do better than that for their class.
How much electricity does a dehumidifier use?
ENERGY STAR estimates about 257 to 283 kWh a year for efficient 25-pint units and about 515 kWh for a 50-pint-class Midea Cube, roughly $44 to $89 at the 2025 US average price.
Do ENERGY STAR dehumidifiers save money?
ENERGY STAR says certified dehumidifiers use about 20% less energy than conventional units to remove the same moisture.
Is a bigger dehumidifier less efficient?
Not necessarily. Larger units use more electricity because they remove more water, but they can have the same or higher IEF. Compare IEF within the size you need.
What does ENERGY STAR Most Efficient mean?
It is a designation ENERGY STAR gives to certified models that meet stricter efficiency criteria than the standard label. The flag appears in ENERGY STAR's certified product data.
Sources
- ENERGY STAR Certified Dehumidifiers (data set), ENERGY STAR (US EPA)
- ENERGY STAR Dehumidifier Key Efficiency Criteria, ENERGY STAR (US EPA)
- Dehumidifiers, ENERGY STAR (US EPA)
- Dehumidifier Testing and Capacity, ENERGY STAR (US EPA)
- A Brief Guide to Mold, Moisture and Your Home, US Environmental Protection Agency
- Electric Power Monthly, Table 5.3: Average Price of Electricity to Ultimate Customers, US Energy Information Administration
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