Running cost
Lower power bill than most 19–28 pint models
It uses 35 kWh a year less than the median 19–28 pint model. Over 11 years, the DOE’s average life for a portable, that’s about $70 saved in the United States.
How long dehumidifiers lastOur read
Who it suits
At 20 pints a day, the MAD20S1QWT fits a damp space under 2,000 sq ft. For a very damp or wet one, the table asks for more. It’s one of the cheaper models of its size to run.
20 pints a day
Where that fits on the ENERGY STAR sizing table
| How damp the space is | Under 2,000 sq ft | Over 2,000 sq ft |
|---|---|---|
| DampSmells musty now and then50–75% RH | Fits20–30 pints suggested | Too small30+ pints suggested |
| Very dampDamp spots on walls or floor75–90% RH | Too small25–40 pints suggested | Too small40+ pints suggested |
| WetWalls sweat or water seeps in90–100% RH | Too small30–50 pints suggested | Too small50+ pints suggested |
Capacity suggested for each case, read Oct 5, 2026. ENERGY STAR adds that it’s better to oversize than undersize.
Ask before you buy
Ask how loud it is
No source we use gives a dB(A) figure for the MAD20S1QWT. For a bedroom or an office, ask the seller for one, and for the distance it was measured from.
Quiet dehumidifier guideFrom the data
Where it stands
- At 249 kWh a year, it sits 35 kWh below the middle of its class.
- Its refrigerant is R-32, flagged as lower GWP.Global warming potential 675.
- No Wi-Fi app.Not listed as connected.
- Tied for 4th of 155 certified 19–28 pint portables for low energy use.
- Its efficiency, 1.70 liters per kWh, is 31% above the federal minimum for its capacity class.The DOE sets 1.30 L/kWh for portables rated 25 pints a day or less. Every unit made since June 13, 2019, must meet it.
- The smallest portable certified under the Midea name. Next up is the MAD22S1AWWT, at 22 pints.That one uses 27 kWh a year more.
- On the market since October 2025, newer than 30% of the 19–28 pint models on the list.
- Not on the EPA’s Most Efficient list, which names 31 of the 19–28 pint models.
- The company that files it also files the Pelonis models with the EPA.
- The nearest size from another brand is the AlorAir Sentinel Pro35X, rated 21 pints and 242 kWh a year.In the United States, this one costs $2 a year more to run.
Our arithmetic
One full day of drying
Water
2.5gal
20.16 pints
Electricity
5.6kWh
liters ÷ IEF
Cost
$1.03
in the United States
A day of nonstop drying means 20.16 pints of water, about 2.5 gallons, for some 5.6 kWh. At the average home electricity price in the United States, the MAD20S1QWT costs $1.03 to run that day.
The EPA’s yearly estimate, 249 kWh, adds up to about 44 days like that. Each extra day at full output costs another $1.03.
Those 20.16 pints come from a DOE test at 65°F and 60% humidity. Cooler air at that humidity gives up less water, so expect fewer pints in a cold basement.
Every day at full output leaves 2.5 gallons to get rid of. Check how the MAD20S1QWT drains, since our sources don’t say.
Running cost
Cost in your state
249 kWh a year × the home electricity price of each state.
| State | Price | Relative cost | Per year |
|---|---|---|---|
| Louisiana (lowest) | 12.72¢ | $32 | |
| U.S. averageYour state | 18.31¢ | $46 | |
| U.S. average | 18.31¢ | $46 | |
| California | 33.61¢ | $84 | |
| Hawaii (highest) | 48.00¢ | $120 |
Same EPA figures
2 other Midea model numbers
The EPA lists the same capacity, 20.16 pints, and the same energy use, 249 kWh, for these models. Color, pump, or app may differ, so check each page.
MC20MSWBA3RCMMDUDMA-20AEN8-BA7
Safety
Recalls
No CPSC recall names this model.Checked Oct 4, 2026.
201120142016
This modelOct 2025
Three recalls of dehumidifiers from GD Midea, sold as Midea, GE, and other brands, all before this model came on the market. See the 3 recalls
Every number has a source
Where the numbers come from
U.S. EPAOct 15, 2026
Capacity, energy use, refrigerant, filing company, certification.
Record 4512369 · certified Oct 20, 2025U.S. Energy Information AdministrationJuly 2026
Home electricity price in each state.
Electric Power Monthly, Table 5.6.ACode of Federal RegulationsOct 7, 2026
Federal minimum efficiency for each size of dehumidifier.
10 CFR 430.32(v), as of Jan 1, 2025Consumer Product Safety CommissionOct 4, 2026
Recalls of dehumidifiers.
Recalls 11088, 14164, 17024Not published by these sources
- Pump and pump lift
- Noise, dB(A)
- Bucket size
- Lowest working temperature
- Dimensions
- Warranty
Found a number that looks wrong?Report it
Full spec sheet
All the details
How much water it removes2 of 3 published
- Water removed a dayDOE 2019 test (Appendix X1)
- 20.16 pints EPA
- Type
- Portable EPA
- Room size covered
- Not published
Drainage0 of 4 published
- Bucket size
- Not published
- Drain hose connection
- Not published
- Built-in pump
- Not published
- Pump lift
- Not published
Running cost3 of 3 published
- Energy useEPA yearly estimate
- 249 kWh/yr EPA
- Integrated energy factor (IEF)Liters removed per kWh. Higher is better
- 1.70 L/kWh EPA
- Cost a year in the United States
- $46 EPA × EIA
Noise0 of 1 published
- Noise level, dB(A)
- Not published
Build and warranty2 of 6 published
- Refrigerant
- R-32, 4.6 oz EPA
- Wi-Fi app
- No EPA
- Lowest working temperature
- Not published
- Dimensions
- Not published
- Weight
- Not published
- Warranty
- Not published
Certification and filing5 of 5 published
- ENERGY STAR® certified
- Oct 20, 2025 EPA
- On the market since
- Oct 15, 2025 EPA
- Filed byCompany that filed the model with the EPA
- GD Midea Air-Conditioning Equipment EPA
- Sold in
- United States, Canada EPA
- UPC
- 810040941528 EPA
Compare
Similar 20-pint models
Certified portables of the same size with a full page, closest in yearly energy use.
AlorAir
Sentinel Pro35X
Capacity
21 pintsCost a year in the United States
$44Pump
Not publishedNoise
Not publishedENERGY STAR® certified
Argendon
Sandidry Pro35C
Capacity
21 pintsCost a year in the United States
$44Pump (Argendon)
Built-inNoise
Not publishedENERGY STAR® certified
Deye
DYD-P30
Capacity
25 pintsCost a year in the United States
$47Pump
Not publishedNoise
Not publishedENERGY STAR® certified
Guides
Guides and a brand comparison
Each guide compares the certified models of this size for one need. Midea vs Hisense sets the two brands side by side.