Model
Midea MAD22S1BWWT
Rank #127 means 126 of the 519 dehumidifier models we track cost less to run each year; the 10th efficiency percentile means it uses less energy for its size than 10% of those models.
What does the Midea MAD22S1BWWT cost to run per year?
At about $51 a year, the Midea MAD22S1BWWT undercuts most dehumidifier models we track on running cost, rank #127 of 519. Capacity-normalized, it ranks ahead of just 10% of dehumidifier models we track, a clearly below-average result. Its IEF of 1.7 reflects integrated energy factor, one of the class's core efficiency levers.
Immediately around it on the leaderboard, the Midea MAD22S1AWWT at $51/yr runs a little cheaper and the Midea MAD22S1CWWT at $51/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A dehumidifier typically stays in service for somewhere around 8 years; over that span, the Midea MAD22S1BWWT's $51/yr adds up to roughly $408 in electricity alone, before purchase price or repairs.
Also sold as: Black+Decker BDM22WCDA.
By the numbers
The Midea MAD22S1BWWT normalized against its whole class, so each figure means something.
What it costs you over time
Running cost is an every-year number, so it compounds. At $51/yr, here is what the Midea MAD22S1BWWT adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Midea MAD22S1BWWT costs about $510. That is roughly $130 less than the class median, which would run closer to $640 over the same ten years.
How the Midea MAD22S1BWWT compares
The dehumidifier class we track runs from $19 to $521 a year. At $51/yr, it runs about $13 a year cheaper than the class median of $64, and it is about $32 a year more than the cheapest dehumidifier to run at $19.
What drives its running cost
At 22.27 pints/day, the Midea MAD22S1BWWT is a small dehumidifier for its class, which spans 1.91 to 172.13 pints/day with a median of 32.46 pints/day, and smaller dehumidifier models generally cost less to run for the same job, all else being equal. Its IEF of 1.7, below the class median of 2.01, reflects integrated energy factor: a higher figure means it wrings more useful work out of every kilowatt-hour, so it is the efficiency lever to weigh against raw size.
- Integrated Energy Factor (IEF). IEF measures liters of water removed per kilowatt-hour; a higher IEF means less energy per pint of moisture removed for a given capacity.
- Water removal capacity (pints/day). A dehumidifier rated to remove more pints per day is built for a larger space or a more humid room, and generally draws more power to do it.
- Humidistat accuracy. A unit with a more precise humidistat cycles the compressor off once the target humidity is reached, rather than running continuously.
Common questions
Is the Midea MAD22S1BWWT cheap to run?
Yes. Its $51/yr running cost puts it at rank #127 of 519, below what most dehumidifier models we track cost to run.
How much does the Midea MAD22S1BWWT cost per month?
About $4.27 a month, which is the $51 annual estimate spread across twelve months at the US average rate of $0.1856/kWh. Your own bill scales with your local electricity rate and how heavily you use it.
How is this running-cost figure calculated?
The formula is annual kWh times price per kWh: 276 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $51 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Midea MAD22S1BWWT for its size?
10th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
Source
ES_1138537_MAD22S1BWWT_103120250028428_1387878View certified dehumidifier listingsENERGY STAR data as of July 2026Midea and MAD22S1BWWT are used here for identification only and are not endorsements. Figures are computed by WattWise Labs from public ENERGY STAR data, not measured in our own lab.