Capacity suggested for each case, read Oct 5, 2026. ENERGY STAR adds that it’s better to oversize than undersize.
Running cost
Higher power bill than most 29–44 pint models
It uses 56 kWh a year more than the median 29–44 pint model. Over 11 years, the DOE’s average life for a portable, that’s about $113 extra in the United States. The thriftiest 29–44 pint model, the Deciuu LIBRA-RCS32(Y)-N4-3(B), would cost $195 less.
The company that files it with the EPA lists the Pelonis PAD40C1AWTS with the same capacity, energy use, and efficiency. Compare their prices and warranties before you choose.
Wi-Fi app
No app to watch it from upstairs
The EPA doesn’t list the MDUDP-40AEN8-BB0 as connected. Of the 87 certified 29–44 pint models, 8 are. In a crawl space you rarely open, a connected one saves the trip.
Ask for the pump lift and the lowest working temperature
Pump and cold are the two blanks for the MDUDP-40AEN8-BB0 in our sources. A pump matters when water can’t run down to a floor drain. Cold matters because below 65°F, ENERGY STAR says frost can form on the coils.
Uses 430 kWh a year, 56 kWh over the median of its class.
Its refrigerant is R-32, flagged as lower GWP.Global warming potential 675.
Of the 87 certified 29–44 pint portables, 84 use less energy, and 1 uses exactly as much.
At 2.01 liters per kWh, it clears the federal minimum for its class by 26%.The DOE sets 1.60 L/kWh for portables rated over 25 and up to 50 pints a day. Every unit made since June 13, 2019, must meet it.
In the Midea lineup, the next size down is the MAD35C1AWS-A, at 37 pints. The next size up is the MAD50PS1QWT-A, at 50 pints.The bigger one uses 85 kWh a year more.
On the market since June 2025, newer than 17% of the 29–44 pint models on the list.
Not on the EPA’s Most Efficient list, which names 1 of the 29–44 pint models.
The company that files it also files the Pelonis models with the EPA.
Another brand near this size: the Pelonis PAD40C1AWTS, at 42 pints and 430 kWh a year.Both cost the same to run in the United States.
Our arithmetic
One full day of drying
Water
5.2gal
41.79 pints
Electricity
9.8kWh
liters ÷ IEF
Cost
$1.80
in the United States
A day of nonstop drying means 41.79 pints of water, about 5.2 gallons, for some 9.8 kWh. At the average home electricity price in the United States, the MDUDP-40AEN8-BB0 costs $1.80 to run that day.
The EPA’s yearly estimate, 430 kWh, adds up to about 44 days like that. Each extra day at full output costs another $1.80.
Those 41.79 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 5.2 gallons to get rid of. Check how the MDUDP-40AEN8-BB0 drains, since our sources don’t say.