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neomatrixviper 26.3K Views
Jun 7, 2026 12:41 AM

Costco Members: 50-Pint Midea Smart Dehumidifier w/ Built-in Pump

$160

$200

20% off
+ $10 S&Hat Costco Wholesale
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Deal 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.
  • Note: Non-Members may purchase but are subject to a 5% surcharge.
Thanks to Community Member neomatrixviper for sharing this deal.

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:
    • Details of Costco's return policy here.
    • If you don't have a Costco Warehouse Membership, you can sign-up here.
  • 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.

Original Post

Written by neomatrixviper
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.
  • Note: Non-Members may purchase but are subject to a 5% surcharge.
Thanks to Community Member neomatrixviper for sharing this deal.

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:
    • Details of Costco's return policy here.
    • If you don't have a Costco Warehouse Membership, you can sign-up here.
  • 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.

Original Post

Written by neomatrixviper

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Top Comments

avgxazn
18Comments
30Reputation
I've had one for 2 years now and it's still running fine. I bought at 130 then also from costco and did so for peace of mind with costco warranty.

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.
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TidalWaveOne
13.9KComments
4.4KReputation
Pretty sure it's not suppose to stop until it gets to 55% if you set it at 60%... there's a buffer.
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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)

AI-generated summary based on comments from the community. Updated ago

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56 Comments

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Jun 10, 2026 12:05 AM
91 Comments
Joined Jul 2024
0selfcontrolJun 10, 2026 12:05 AM
91 Comments
For what it's worth.. I have the Midea cube 50pint with pump. It's been on everyday pulling out 7.5 gallons daily. Kinda loud but we're used to it now, white noise. No complaints, it's the best of the worst
Jun 10, 2026 12:08 AM
30.3K Comments
Joined Oct 2010
Medic311Jun 10, 2026 12:08 AM
30.3K Comments
we've had much better luck with Frigidaire or Friedrich dehumidifiers than the Midea junk
1
Jun 10, 2026 12:09 AM
273 Comments
Joined Jul 2008
g33kazoidJun 10, 2026 12:09 AM
273 Comments
Quote from Ilovedeals View quoted comment :
A lot of one star reviews. Anyone have or had this?
I've been using one for 2 years and it sees nearly constant use from spring through fall. It still works, but it hasn't been perfect. It removes a lot of humidity though. The built-in pump died after the first season (bummer) and it will often get annoyingly loud like the pump is struggling and then go back to it's normal volume. I'm waiting for it to crap out so I can get a different one, but it's still chugging along.
Jun 10, 2026 12:23 AM
1.9K Comments
Joined Jul 2007
RallyR32Jun 10, 2026 12:23 AM
1.9K Comments
Used mine for a year now. Pulls out a lot of moisture from the air and IMO it's quieter than some of the older models I've had in the past. I don't need to use the pump and can just connect a hose and let gravity do the work. Not sure if the "M" shield/ionizer does anything, but it's decreased my white mold/mildew that I used to get in a part of my house.
Jun 10, 2026 12:28 AM
301 Comments
Joined Aug 2018
BlueHamster202Jun 10, 2026 12:28 AM
301 Comments
I bought one last summer. It's the only dehumidifier I've ever had so I can't compare, but it puts out a lot of heat, making it not great in the summer. It's also pretty loud, even on the low fan setting. You won't want it running much in a living space. It does a good job dehumidifying, though.
Jun 10, 2026 12:35 AM
141 Comments
Joined Jan 2016
aarifuddJun 10, 2026 12:35 AM
141 Comments
Have still past two years . Works great
Jun 10, 2026 1:02 AM
783 Comments
Joined Aug 2012
BitORealPantherJun 10, 2026 1:02 AM
783 Comments
Quote from Ilovedeals View quoted comment :
A lot of one star reviews. Anyone have or had this?
I have the smaller cube version and it's been excellent for three years in a Maine basement. It's dramatically better than the GE model it replaced. The built in pump is the pinnacle of luxury if you've been manually dumping for years.

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Jun 10, 2026 1:24 AM
1.1K Comments
Joined Aug 2010
computer87Jun 10, 2026 1:24 AM
1.1K Comments
i had hisense one from costco and worked ok for 5 years in basement. about 4 hours per day during summer. After 5 years it still runs but almost no water collected. I am guessing needs freon.
Some youtube videos show people refilling freon with some one time plug/piercing thing into pipe but didn't want to try lol. Bought midea last year and worked well last summer. Will see how it goes this summer. I heard people returning dehumidifies even after 6 years to costco since small appliance and not subject to 90 days electronics policy. But costco stuff scrutinize returns more closely now.
Jun 10, 2026 1:35 AM
45 Comments
Joined Jun 2013
BooGotShotJun 10, 2026 1:35 AM
45 Comments
Bought it a year ago from Costco for same price. no issue.
Jun 10, 2026 1:46 AM
117 Comments
Joined Feb 2011
DragunJun 10, 2026 1:46 AM
117 Comments
Mine had the pump fail within a year. It was powered in full time but only ran when it needed to for the 40% setting in my basement. The hygrometer built in it is wildly off for whatever reason so it was running often. My two other hygrometers were consistently the same with each other at around 35-40%. I ended up returning it and buying another one on sale. The pump feature only empties when it is full. Waiting for this one to fail and so far it's been only a season. I'd buy again from Costco.
Jun 10, 2026 2:55 AM
16 Comments
Joined Dec 2007
daswanJun 10, 2026 2:55 AM
16 Comments
Quote from CoffeeCup20 View quoted comment :
I purchased this unit from Costco about a year ago, and the sensor has consistently malfunctioned. I set it to 60%, but the machine refused to stop even when the humidity dropped below that level. The only way to turn it off is to power it down completely. Despite this issue, I find the machine effective at removing humidity, and I keep mine in the living room. However, the noise it produces is quite loud.
I think this is by design. Every dehumidifier I've used does this. They will take it 3-5% below the desired setting. Likely so it's not cycling on and off constantly.
Jun 10, 2026 3:33 AM
165 Comments
Joined Jul 2013
smintmanJun 10, 2026 3:33 AM
165 Comments
If this thing dies, can I just return it to Costco for a refund ?
Jun 10, 2026 3:44 AM
282 Comments
Joined Mar 2017
JabberwockishJun 10, 2026 3:44 AM
282 Comments
I bought this right at two years ago, from Costco, for 170. I've now used it in two different >3k sq ft 1960s southeast Texas houses with little to no vapor sealing. I have not used any of the fancy features, just manually switch it on and off and manually empty the reservoir.

It is a bit loud (especially with the blower on high speed) but works very well. Haven't noticed any changes in sound or function in two years. Cleaning the filter often is very easy and cleaning the reservoir occasionally is not difficult.

The layout of the house I'm in now makes a single dehumidifier less effective; I might pick up a second at this price.
Jun 10, 2026 3:45 AM
76 Comments
Joined Dec 2019
CoffeeCup20Jun 10, 2026 3:45 AM
76 Comments
Quote from daswan View quoted comment :
I think this is by design. Every dehumidifier I've used does this. They will take it 3-5% below the desired setting. Likely so it's not cycling on and off constantly.
Thanks for the reply. I set mine to 60, and even if it drops to 54, it still runs. One of the main drawbacks for me is that it also generates a lot of heat. By the way, how can I reduce the heat that the machine blows off? I appreciate your help in advance.

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Jun 10, 2026 3:57 AM
76 Comments
Joined Dec 2019
CoffeeCup20Jun 10, 2026 3:57 AM
76 Comments
Quote from TidalWaveOne View quoted comment :
Pretty sure it's not suppose to stop until it gets to 55% if you set it at 60%... there's a buffer.
I'm certain mine has passed 54 and below when I set it to 60, and it still continues to run. I thought my sensor was malfunctioning and lazy to return because it does do a good job removing moisture from the air.

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Home & Home ImprovementSmall AppliancesAir Purifiers, Humidifiers & DehumidifiersMideaCostco Wholesale