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Costco Members: 50-Pint Midea Smart Dehumidifier w/ Built-in Pump
$160
$200
20% off
+ $10 S&Hat Costco Wholesale
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+ $10 S&Hat Costco WholesaleDeal Details
Costco Wholesale has for its Members: 50-Pint Midea Smart Dehumidifier w/ Built-in Pump (MAD50PS1BWT-C) on sale for $159.99. Shipping is $9.99.
About this product:
- Note: Non-Members may purchase but are subject to a 5% surcharge.
About this product:
- For Spaces up to 4,500 Sq. Ft.
- Energy Star Certified
- App and Voice Access Allow for Easy Control from Anywhere via SmartHome App & Voice Assistant Devices
- Side Access Bucket with Lid to Reduce Spillage when Emptying
- MShield Air Ionizer Technology Reduces Odors, Smoke, and Gases in the Air.
Editor's Notes
Written by jimmytx | Staff- About this Store:
- Additional Information:
- $40 manufacturer's savings is valid 6/2/26 through 6/21/26. While supplies last. Limit 5 per member.
- Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Costco Wholesale has for its Members: 50-Pint Midea Smart Dehumidifier w/ Built-in Pump (MAD50PS1BWT-C) on sale for $159.99. Shipping is $9.99.
About this product:
- Note: Non-Members may purchase but are subject to a 5% surcharge.
About this product:
- For Spaces up to 4,500 Sq. Ft.
- Energy Star Certified
- App and Voice Access Allow for Easy Control from Anywhere via SmartHome App & Voice Assistant Devices
- Side Access Bucket with Lid to Reduce Spillage when Emptying
- MShield Air Ionizer Technology Reduces Odors, Smoke, and Gases in the Air.
Editor's Notes
Written by jimmytx | Staff- About this Store:
- Additional Information:
- $40 manufacturer's savings is valid 6/2/26 through 6/21/26. While supplies last. Limit 5 per member.
- Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.
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Top Comments
my use case is bathroom dehumidifying during showers bc theres no exhaust fan. this is very high humidity removal for like 20min a day vs what i will be purchasing a new unit for my basement likely running 24/7 until dead winter.
Community Reviews
This Midea 50 pint smart dehumidifier is best known for strong moisture removal and long-running basement or bathroom use, with the built in pump making drainage easier than manual dumping. Several long term reports describe two years or more of steady operation, and the phone app is genuinely useful for monitoring humidity. The main drawbacks are noise, noticeable room heat, and a humidity sensor that can run below the setpoint or short cycle. Pump failures and occasional odor or fan issues also appear, so it suits spaces where performance matters more than quiet.
Common Questions (5)
Yes, it is reported to pull a lot of moisture and work well in basements, bathrooms, garages, and humid climates like Long Island and southeast Texas. Users also note it can reduce mildew and keep up with near-constant use when properly drained and maintained.
It removes moisture well, but it is commonly described as loud, especially on higher fan settings, and several owners avoid using it in bedrooms or living spaces. Some find the sound tolerable as white noise, but it can also heat the room noticeably.
It may run a few percentage points below the setpoint, and some units are reported to read inaccurately or short-cycle. Setting the target about 5% lower than desired, or using an external hygrometer, helps it behave more predictably.
Several owners report 2+ years of reliable use, including 24/7 basement and shed operation, while others saw failures in the pump or the whole unit within a season or two. Keeping the filter clean and draining it properly appears to help it stay efficient.
The pump can work well for a while, but multiple reports say it failed after about one season to two seasons of use. A practical workaround is gravity draining or using a separate condensate pump instead of relying on the built-in one.
AI-generated summary based on comments from the community. Updated ago
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56 Comments
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You can try running it during cooler parts of a day or ducting the heat elsewhere. If you need things both drier and cooler, an air conditioner is the way to go.
It's still loud and I wouldn't put it near a bedroom. That's true for any of the bigger units.
My only real complaint is the humidity sensor is wildly inaccurate with the unit on. This leads to constant short cycling. I control the unit via an external hygrometer with Home Assistant and it makes the unit perform much better for the electricity it consumes. I'm very happy with it controlled externally, but I would've found a different unit if I had to rely on the internal sensor.
It should only draw large amounts of power when it's truly pulling water out of the air. Sure, the fan takes power too, but the amount of energy consumed is proportional to water being taken out + fan/etc overheads. If you set it to dehumidify forever but there was no water to take out of the air, then you're effectively paying for a slightly inefficient fan (radiators causing extra air resistance that a normal blue fan wouldn't otherwise encounter). For all these reasons, I just set and forget without work about the extra cycling. That works for Lazy Me.
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It can still make sense in a limited case, such as a bathroom after a shower, where you mainly want to move warm, dry air out of the small space and replace it with relatively drier household air. But that's more like using the dehumidifier as a crude drying/exhaust strategy, not an efficient way to cool and dehumidify the same room.
That's why this is the better solution: "If you need things both drier and cooler, an air conditioner is the way to go."
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