Check before you buy. Pump, noise, and warranty aren’t in our sources, so ask the seller.
Our read
Who it suits
At 22 pints a day, the MAD22S1BWWT fits a damp space under 2,000 sq ft. It’s too small for a very damp or wet one. Pelonis lists two models with the same EPA figures, so compare prices.
Capacity suggested for each case, read Oct 5, 2026. ENERGY STAR adds that it’s better to oversize than undersize.
Running cost
A middle-of-the-pack power bill
Next to the median 19–28 pint model, this one costs $16 less to run in the United States over 11 years. That’s how long the DOE expects a portable to last. The thriftiest 19–28 pint model, the Knka PD30MA-20, would save $93 over those years.
The company that files it with the EPA lists the Pelonis PAD22C1DWT and PAD22C1DWTS with the same capacity, energy use, and efficiency. Compare their prices and warranties before you choose.
Ask before you buy
Ask for a noise figure
Our sources publish no noise level for the MAD22S1BWWT. If it runs where you sleep or work, ask for a figure in dB(A), with the distance it was measured from.
Its 276 kWh a year is 8 kWh less than the median for its size.
Its refrigerant is R-32, flagged as lower GWP.Global warming potential 675.
No Wi-Fi app.Not listed as connected.
Tied for 24th 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.
In the Midea lineup, the next size down is the MAD20S1QWT, at 20 pints. The next size up is the MDUDA-25AEN8-BB0F, at 27 pints.The bigger one uses 7 kWh a year more.
On the market since October 2025, newer than 32% 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 Frigidaire FHDD2233Y1, rated 22 pints and 276 kWh a year.Both cost the same to run in the United States.
Our arithmetic
One full day of drying
Water
2.8gal
22.27 pints
Electricity
6.2kWh
liters ÷ IEF
Cost
$1.13
in the United States
A day of nonstop drying means 22.27 pints of water, about 2.8 gallons, for some 6.2 kWh. At the average home electricity price in the United States, the MAD22S1BWWT costs $1.13 to run that day.
The EPA’s yearly estimate, 276 kWh, adds up to about 45 days like that. Each extra day at full output costs another $1.13.
Those 22.27 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 2.8 gallons to get rid of. Check how the MAD22S1BWWT drains, since our sources don’t say.