Check before you buy. Pump, noise, and warranty aren’t in our sources, so ask the seller.
Our read
Who it suits
At 50 pints a day, the MDUDP-50AEN8-BB0B fits every space in the ENERGY STAR table, wet ones over 2,000 sq ft included. Its running cost is close to the median, so drainage, noise, and price matter more.
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 45–50 pint model, this one costs $4 less to run in the United States over 11 years. That’s how long the DOE expects a portable to last. The thriftiest 45–50 pint model, the Aeocky LEO PRO-RCS50(Y)-N4-3(B)-25, would save $161 over those years.
The EPA doesn’t list the MDUDP-50AEN8-BB0B as connected. Of the 156 certified 45–50 pint models, 14 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-50AEN8-BB0B 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.
At 518 kWh a year, it sits 2 kWh below the middle of its class.
Its refrigerant is R-32, flagged as lower GWP.Global warming potential 675.
Ranks 75th of 156 certified 45–50 pint portables for low energy use.
Its efficiency, 2.01 liters per kWh, is 26% above the federal minimum for its capacity class.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.
Midea’s next size down is the MDUDP-40AEN8-BB0, rated 42 pints.That one uses 88 kWh a year less.
Sold since June 2025. Among 45–50 pint models, 10 of 156 came out earlier.
Not on the EPA’s Most Efficient list, which names 8 of the 45–50 pint models.
The company that files it also files the Pelonis models with the EPA.
The nearest size from another brand is the Amazon Basics B0GR2TN8YX, rated 50 pints and 525 kWh a year.In the United States, this one costs $1 a year less to run.
Our arithmetic
One full day of drying
Water
6.2gal
49.74 pints
Electricity
11.7kWh
liters ÷ IEF
Cost
$2.14
in the United States
A day of nonstop drying means 49.74 pints of water, about 6.2 gallons, for some 11.7 kWh. At the average home electricity price in the United States, the MDUDP-50AEN8-BB0B costs $2.14 to run that day.
The EPA’s yearly estimate, 518 kWh, adds up to about 44 days like that. Each extra day at full output costs another $2.14.
Those 49.74 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 6.2 gallons to get rid of. Check how the MDUDP-50AEN8-BB0B drains, since our sources don’t say.