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Amazon Basics

Amazon Basics Dehumidifier with Drain Pump, 50-Pint, Energy Star Certified, for Basement, Bathroom and Other Rooms Up to 4000 SFT, with Timer, auto-defrost, Overflow Protection, White

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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Mar 8
Order within 7 hours and 55 minutes
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Size: 50 Pint


Style: With Drain Pump


Features

  • ENERGY EFFICIENT: Our Energy Star Dehumidifier provides lower energy consumption while effectively reducing humidity levels in spaces up to 4,000 square feet, making it ideal for medium-sized rooms
  • AUTO RE-START FUNCTION: These large dehumidifiers for home conveniently resume operation with your previous settings after a power outage, providing consistent humidity control without hassle
  • HUMIDITY CONTROL: This air dehumidifier maintains optimal indoor humidity between 45-55% for enhanced comfort and air quality in any space
  • ENHANCED FEATURES: The home dehumidifier offers peace of mind with drain pump for continuous operation, auto-defrost, overflow protection, and a timer for reliable operation across diverse environments
  • EASY MAINTENANCE: Equipped with a re-usable filter that's simple to clean, it keeps performing at its best without frequent replacements

Description

Designed for areas up to 4000 square feet, this air dehumidifier for home provides optimal air quality with ease. Suitable as a dehumidifier for large rooms, it features a smart dehumidification process that keeps the humidity at a comfortable 45-55% range, making it ideal as both a basement dehumidifier and a dehumidifier for bedrooms. The unit includes convenient features such as a drian pump, timer, auto-defrost, and overflow protection—enhancements that allow continued operation and maintenance ease. The auto re-start feature is valuable, resuming previous settings after a power outage. From the Manufacturer Amazon Basics

Floor Area: 4000 Square Feet


Color: White


Special Feature: Timer


Capacity: 50 Pints


Tank Volume: 50 Pints


Product Dimensions: 11.1"D x 15.43"W x 24.25"H


Recommended Uses For Product: Residential


Included Components: re-usable filter


Item Weight: 41.7 Pounds


Floor Area: 4000 Square Feet


Color: White


Special Feature: Timer


Capacity: 50 Pints


Tank Volume: 50 Pints


Product Dimensions: 11.1"D x 15.43"W x 24.25"H


Recommended Uses For Product: Residential


Included Components: re-usable filter


Item Weight: 41.7 Pounds


Model Name: MDUDP-50AEN1-BA8B


Operation Mode: Sleep


Dehumidification Capacity: 50 Pints per Day


UPC: 810004816756


Item Weight: 41.7 pounds


Item model number: MDUDP-50AEN1-BA8B


Batteries required: No


Import: Imported


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Mar 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Easy to Set Up and Use
Size: 50 Pint Style: Standard
Works well dehumidifying my home and garage in the summer months. Noise is moderate, but mostly just white noise in the background. The setup is straight forward and instruction manual is easy to follow.
Reviewed in the United States on December 9, 2025 by Jaclyn
    • Pleasantly Surprised
Size: 50 Pint Style: Standard
Review Image by TWD TWD
Review Image by TWD TWD
Review Image by TWD TWD
Review Image by TWD TWD
This is an exceptional dehumidifier. It's been run hard for the three weeks that I've owned it. And it's worked terrifically. I was pleasantly surprised because the reviews indicated a lot of negative comments. In fact, one reviewer indicated that CR rated it at a very low 35 on its performance scale. These points notwithstanding, I still decided to go ahead and buy it because of my positive prior experience with another Amazon Basics product (a Microcut Shredder). I'm glad that I bought it. It's performed better than my old Home Labs dehumidifier, which was very highly rated by CR a few years ago. I use it in my combined Laundry and Utility Room which is adjacent to a crawl space, so there's lots of humidity in these areas. The dew point has hovered in the 70s or tropical humidity since early July so it's been tested hard. It has passed with flying colors. The Control Panel is straightforward and intuitive. I run it on Continuous Fan so it only stops for the water tank to be emptied. The Humidistat is very accurate and maintains a comfortable setting. The Filter Alert Light is accurate and reliable. The Water Tank is more than adequate. The Wheels on it make it easy to move to other areas. I definitely would buy this dehumidifier again and I highly recommend it to prospective buyers. The only caveat at this point is whether it will continue to perform well in the long run. [As such, I will update this review at a future date.] ... show more
Reviewed in the United States on July 22, 2025 by TWD TWD
    • Stopped working after 6 months
Size: 50 Pint Style: With Drain Pump
I bought this to dehumidify my 1600 square foot home. It is rated for 4000 square foot. At first it worked great, though a bit noisy. Also it blows hot air while it is working. When it stopped dehumidifying, it blew cold air. It still turns on, just doesn't dehumidify. The pump worked great. I was very happy with that feature. I had to really read over the manual to understand the ways it can operate and the icons on the buttons. It's pretty heavy but luckily it has wheels to roll it around. The water collection tank and filter is pretty easy to clean. When it stopped working and I had to contact Amazon for return. This process has been a nightmare. First they wanted me to return it for a fraction of the cost. They said they would have UPS pick it up even though I didn't have the box anymore. But when I read the instructions they sent, I was supposed to box it. So I tried the chat for help. That wasn't helpful. So I requested a call. At first the rep wanted me to purchase it again then return the defective one. Item is no longer available. In the end, she forwarded my warranty request to another department to determine if it has a warranty. However online, it is documented that all Amazon Basics have a 1 year limited warranty, unless it is an item that is consumable, like food or printer ink. I will NEVER EVER buy Amazon Basics again. ... show more
Reviewed in the United States on March 1, 2024 by MelJoy Create
    • Works great at removing moisture
Size: 50 Pint Style: With Drain Pump
Excellent dehumidifier works quickly. We had a moisture problem in our unfinished basement. Went from low 80% humidity to 50% in about 2 days. Dried up the water and hasn't been wet since. We only use it on continuous with the drain hose connected. The only complaint I really have is that it stores a full tank of water before the drain kicks on and never fully drains the tank. This makes the tank get nasty quick. I just add a little bleach to the tank and cleans it up. Otherwise no complaints after a month of use. Can't comment on the noise because it's in our basement and I never hear it. ... show more
Reviewed in the United States on August 9, 2025 by Alex
    • It works great, and is just as good (if not better) than all the major legacy brands.
Size: 50 Pint Style: Standard
After purchasing a 100% defective and garbage GE dehumidfier from Amazon a week prior to buying this one, I am very pleased. After letting it sit upright for 24 hours (as per the instructions) I fired it up and it immediatly started snatching moisture from my damp basement. The noise is low, the controls are easy to use, and it just flat out works. I use a continuous drain hose, so I cannot speak to how often the tank needs emptied. I highly recommend looking at this dehumidifier, because we all know the "big" brands are overpriced and built in the same country this one is anyways. Which, of course, is China. ... show more
Reviewed in the United States on October 10, 2025 by Derek244
    • Worth the investment!
Size: 50 Pint Style: With Drain Pump
This unit has been great so far! We bought this as a replacement for an older B&D unit that failed after several years of continuous use. The bucket filled up within a few hours and has worked great with the automatic pump. It is worth investing a little more into one with the pump if you plan to use it in a damp basement. We have it pump directly into our washing machine drain pipe so that we don't have to worry about emptying the bucket. The unit is also much, much quieter than our older unit. We'll see how long the unit lasts, but we got the 4-year protection plan just in case we have issues. To be honest, I've never had the best luck with longevity with dehumidifiers so that warranty was a no-brainer. Definitely recommend the unit with the pump PLUS the protection plan. ... show more
Reviewed in the United States on July 23, 2025 by Josh A
    • Works well
Size: 35 Pint Style: Standard
Been fighting high humidity for years Tried many smaller units with no luck I have had this running for three days now, it appears to be working well, it has filled the basin 3 times My house doesn't receive much sunlight during winter months and humidity has always been a issue Far from quiet, however I have it in a room on opposite side of house so it's not a issue ... show more
Reviewed in the United States on November 24, 2025 by C56CAMEO

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