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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 11:44 PM
76 Comments
Joined Dec 2019
CoffeeCup20Jun 10, 2026 11:44 PM
76 Comments
Quote from BrainDoc View quoted comment :
You can't reduce the heat. It's part of the physics of pulling the moisture out of the air and dumping the dry air back in the same space. A dehumidifier is essentially an air conditioner with the hot side still inside the room.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.
Thank you for the advice. Since we have central air conditioning, we don't need an additional air conditioner. I agree with the number of people who mentioned other than noise and inaccurate sensor, but it does a good job of pulling moisture out of the air. Perhaps I should move it to somewhere else other than the living room. Thanks
Jun 11, 2026 4:04 AM
15 Comments
Joined May 2015
dataubp1Jun 11, 2026 4:04 AM
15 Comments
FYI it's very noisy
Jun 11, 2026 10:59 AM
155 Comments
Joined Jan 2015
thirdlifeJun 11, 2026 10:59 AM
155 Comments
Quote from Ilovedeals View quoted comment :
A lot of one star reviews. Anyone have or had this?
I've been running it 24/7 gor two years. I have it set to stop at 45% and it works as expected. I have it pump the condensation into a laundry room sink. I end up needing to dust off the filter cover once a week, but that only takes 30 seconds. I'd buy it again if I needed another.
Jun 11, 2026 11:58 AM
11 Comments
Joined Jan 2019
SlickRick26Jun 11, 2026 11:58 AM
11 Comments
I have owned this one for about a year now and it works with no issues. I do not use the pump, I just have it gravity drain to my sump pump and I have it on 24/7/365 and set to auto 50% humidity in my basement. It runs a lot in the summer and not so much in the winter. I was skeptical about another "smart" device in my home but this one is actually useful, being able to monitor the humidity levels in my basement from my phone is nice, in addition to being able to control it from the app as well.
Side note- I always buy my dehumidifiers from costco due to their excellent return policy. Consumer grade dehumidifiers only seem to last 3-5 years with moderate to heavy usage. My last one (of a different brand, Midea) only lasted one year, replaced under manufacturer warranty, then that one broke two years later. I returned that to costco, they looked up the receipt, and gave me costco cash, which I purchased this model with. If and when this one dies I'll do the same thing again.
Jun 11, 2026 4:56 PM
74 Comments
Joined Nov 2020
Mr.M5070Jun 11, 2026 4:56 PM
74 Comments
Quote from Ilovedeals View quoted comment :
A lot of one star reviews. Anyone have or had this?
been using this for couple of months.. no complaints so far... auto pump discharge is great
Jun 11, 2026 8:00 PM
7 Comments
Joined Jul 2020
EfficientCaption471Jun 11, 2026 8:00 PM
7 Comments
Was satisfied when I had it, but it lasted one season only. Took it back for a refund.

Have the Hisense now which is more powerful but noticed the pump isn't designed to keep up if it runs non stop so will switch to gravity drain.
Jun 11, 2026 8:24 PM
395 Comments
Joined Feb 2022
SmartAlpaca4442Jun 11, 2026 8:24 PM
395 Comments
Quote from Medic311 View quoted comment :
we've had much better luck with Frigidaire or Friedrich dehumidifiers than the Midea junk
My 2 Frigidaire has been running daily non-stop since 2002. I bought them used...

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Jun 12, 2026 1:46 AM
372 Comments
Joined Mar 2019
UpbeatKnob539Jun 12, 2026 1:46 AM
372 Comments
I have 3 of these running 24/7 in sheds in the humid south. I set them to nonstop mode and plumb a 3/4-inch PVC drain with a trap going outside. The back of the unit has a 3/4-inch male garden hose connection, so it just needs an adapter that goes from 3/4-inch female GHT to 3/4 PVC. I put a 3/4 Fernco rubber coupler on there just in case I ever need to remove the units.

My 3 units have been running on max 24/7 for several years without any issues.

They require cleaning the filters every few months and cleaning the p-trap on the drains about once a year.

They do very well at pulling water out of the air, but be aware they produce heat as a byproduct and will heat the room they are in over time.
Jun 23, 2026 3:33 PM
2 Comments
Joined Dec 2024
ddtbrennanJun 23, 2026 3:33 PM
2 Comments
Better deal at walmart - https://www.walmart.com/ip/Restor...dkQAvD_BwE
Jul 27, 2026 11:53 PM
1.8K Comments
Joined Oct 2012
doomstangJul 27, 2026 11:53 PM
1.8K Comments
Quote from ddtbrennan View quoted comment :
Better deal at walmart - https://www.walmart.com/ip/Restor...dkQAvD_BwE
That's a redurb. I'll be getting the new one from Costco that's still on sale
Jul 29, 2026 2:19 AM
154 Comments
Joined Nov 2018
notr1Jul 29, 2026 2:19 AM
154 Comments
I got a refurb from Walmart for $109. I'm pretty happy with its performance pulling moisture out of the air. It definitely makes a noticeable difference in my garage. It is louder than my crawlspace dehumidifier, especially when the pump is running. Also, the unit doesn't always turn on or off as quickly as expected given the set parameters. My biggest dislike is that the pump doesn't kick on until the reservoir is full. I'd prefer the water getting pumped out right away rather than sitting in the unit for a few days. Overall, though, I'm satisfied with the unit so far.

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Home & Home ImprovementSmall AppliancesAir Purifiers, Humidifiers & DehumidifiersMideaCostco Wholesale