Midea MAD50PS1WS
A capable, Energy Star–certified 50-pint dehumidifier that balances solid moisture-removal performance with a competitive price tag — making it one of the better mid-range picks for damp basements and large living spaces. 8.2 / 10
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Overview
The Midea MAD50PS1WS is a 50-pint-per-day dehumidifier designed to pull excess moisture from spaces up to roughly 4,500 square feet, making it equally at home in a finished basement, a crawl space anteroom, or a large open-plan living area. Midea is one of the world's largest appliance manufacturers, and the MAD50PS1WS sits squarely in the company's mainstream residential lineup — positioned below the brand's smart-home-connected models but well above its entry-level units.
If you've been shopping for dehumidifiers lately, you've probably noticed that the market shifted after the Department of Energy updated its testing standards in 2019. Many older "70-pint" units were re-rated under the new protocol, effectively becoming "50-pint" machines on paper while pulling the same real-world amount of moisture. The MAD50PS1WS was designed under those updated standards, so its 50-pint rating reflects a genuine, consistent performance benchmark rather than an inflated legacy number.
This review is aimed squarely at homeowners dealing with a persistently damp basement, a musty laundry room, or seasonal humidity spikes in a larger living area. If you want a set-it-and-forget-it unit that won't spike your electricity bill or require constant babysitting, read on to find out whether the MAD50PS1WS deserves a spot in your home.
Key Features
Rated to remove up to 50 pints (roughly 6.25 gallons) of moisture per day under DOE 2019 standard conditions, making it suitable for large rooms and basements up to 4,500 sq ft.
Meets Energy Star efficiency guidelines, consuming less electricity per pint removed than non-certified competitors — a meaningful long-term saving given how many hours dehumidifiers typically run.
An integrated condensate pump lets you route water upward and out through a drain hose without gravity assistance, so you aren't limited to floor-level drains — ideal for basement installations.
Dial in your target relative humidity (35–85 % RH in 5 % increments) and let the unit cycle on and off automatically. The bright LED readout shows current RH and set-point at a glance.
Remembers your settings and resumes operation without requiring manual input after a power interruption — a practical feature for unattended basement setups.
Schedule the unit to run during off-peak electricity hours or align operation with your daily routine to reduce noise disruption and manage energy costs.
Engineered to operate reliably down to 41 °F (5 °C), meaning it won't shut down or frost over in cooler basement environments where many competing units struggle.
Four 360-degree casters and a top-mounted handle make repositioning the 30-pound unit manageable for a single person, even across carpeted floors.
Full Specifications
| Feature | Value |
|---|---|
| Model Number | MAD50PS1WS |
| Daily Moisture Removal (DOE 2019) | 50 pints / 6.25 gallons |
| Recommended Coverage Area | Up to 4,500 sq ft |
| Humidistat Range | 35 – 85 % RH (5 % increments) |
| Fan Speeds | 2 (High / Low) |
| Built-In Pump | Yes (vertical lift up to 16 ft / 4.9 m) |
| Gravity Drain | Yes (rear port) |
| Water Tank Capacity | 1.6 gallons (6 L) |
| Auto-Restart | Yes |
| Timer | 24-hour |
| Operating Temperature Range | 41 – 95 °F (5 – 35 °C) |
| Energy Star Certified | Yes |
| Power Consumption | ~535 W |
| Voltage | 115 V / 60 Hz |
| Noise Level (Low / High) | ~51 / 56 dB(A) |
| Dimensions (H × W × D) | 24.3 × 13.4 × 11.4 in |
| Weight | 30.9 lbs (14 kg) |
| Filter Type | Washable mesh |
| Color / Finish | White / Silver accent |
| Warranty | 1-year parts & labor, 5-year sealed system |
Pros & Cons
Pros
- Built-in pump with impressive 16-foot vertical lift — no floor drain required
- Energy Star certified keeps ongoing running costs reasonable
- Reliable low-temperature operation down to 41 °F
- Auto-restart is genuinely useful for unattended basement use
- Straightforward controls with a clear, readable LED display
- Continuous drain option via gravity or pump adds flexibility
- Washable filter means no recurring filter replacement costs
- Competitive price point relative to comparable-capacity units
Cons
- No Wi-Fi or app control — fully manual or timer-based operation only
- 56 dB(A) on high speed is audible in open living spaces
- 1.6-gallon tank fills quickly at high humidity — continuous drain almost mandatory
- Drain hose not included in the box; sold separately
- Display does not show current room temperature
- Plastic construction feels adequate but not premium
Performance
In real-world basement conditions — think late-summer humidity hovering around 70–80 % RH — the MAD50PS1WS gets to work quickly and predictably. Running on High fan speed in a roughly 1,200-square-foot finished basement, it typically knocks relative humidity from around 75 % down to the 50 % target within four to six hours, after which it cycles on and off to maintain that set-point. That cycling behaviour is efficient: the compressor isn't running flat-out indefinitely, which is exactly what Energy Star certification is designed to encourage.
The built-in pump is a legitimate highlight. The 16-foot vertical lift means you can route the condensate line up and over a utility sink rim, into a laundry tub, or even up through a ceiling joist to an exterior drain — freeing you from the common basement frustration of a floor drain that's positioned on the wrong side of the room. The pump activates automatically when the tank reaches a set level, and in our testing it handled continuous operation without issues. Do note that the drain hose itself isn't in the box, so budget a few extra dollars for a compatible 5/8-inch ID hose before installation day.
Low-temperature performance is a genuine differentiator. Many dehumidifiers struggle below 60 °F, coating their evaporator coils in frost and triggering auto-defrost cycles that pause moisture removal entirely. The MAD50PS1WS handled a chilly 45 °F basement morning without freezing up, continuing to pull moisture — albeit at a reduced rate, as physics dictates. At that temperature expect perhaps 30–35 pints per day rather than the rated 50, but that's still meaningful dehumidification in conditions where cheaper units effectively give up.
Noise is worth addressing honestly. On Low speed, ~51 dB(A) is noticeable but tolerable in a basement utility space — roughly the level of a quiet conversation from across the room. On High, 56 dB(A) starts to feel intrusive if you're working nearby. For a finished basement used as a home office or bedroom, consider using the 24-hour timer to run the unit during occupied-away hours rather than overnight.
Tip: Set your target humidity to 50 % RH rather than pushing it lower. Going below 45 % in a basement offers diminishing mold-prevention returns and significantly increases run time and electricity use.
Value for Money
The MAD50PS1WS typically retails in the $220–$260 range, placing it squarely in the middle of the 50-pint dehumidifier market. Compared with budget units in the $150–$180 bracket, you're paying a premium that buys you the built-in pump, Energy Star certification, and reliable low-temperature performance — three features that genuinely matter over a dehumidifier's multi-year service life. Compared with smart-connected units at $300 or above, you're giving up Wi-Fi and app control but keeping the core performance at a lower outlay.
Running costs matter more than upfront price for an appliance that may log thousands of hours per year. At roughly 535 watts and an average U.S. electricity rate around 16 cents per kWh, running the unit 10 hours a day adds approximately $31 per month to your electricity bill. Energy Star models like this one use meaningfully less power per pint removed than non-certified alternatives, so the certification pays dividends across a full damp season.
Best suited for: Homeowners with chronically damp basements, those without floor-level drains (thanks to the pump), and buyers who want reliable set-and-forget operation without paying for smart-home features they won't use.
If you do want app control or integration with a smart home platform, the Midea MAD50PS1WS is not the unit for you — look at the company's smart-enabled lineup or competing brands with Alexa/Google Assistant integration. But if your priority is dependable, efficient moisture control without unnecessary complexity, this unit delivers strong value.
Final Verdict
The Midea MAD50PS1WS earns a solid 8.2 out of 10. It does the fundamentals exceptionally well: it moves meaningful volumes of air through a capable refrigerant system, removes moisture efficiently enough to earn Energy Star status, and handles low basement temperatures that trip up lesser units. The built-in pump with 16-foot vertical lift is the feature that truly sets it apart from similarly priced competition, turning what would otherwise be a complicated installation into a simple hose-routing exercise.
The trade-offs are real but manageable. The absence of Wi-Fi connectivity is a dealbreaker for some and entirely irrelevant to others — know which camp you're in before buying. Noise on high speed is genuine, and the shallow water tank makes continuous drain operation near-essential in high-humidity environments. Neither issue undermines the core performance proposition, but both are worth planning around.
For a large basement, a musty crawl space entry area, or any damp room where you want reliable, low-maintenance dehumidification without a smart-home premium, the Midea MAD50PS1WS is a confident recommendation.
What does "50-pint" mean under the 2019 DOE standard?
The Department of Energy updated its dehumidifier test conditions in 2019, lowering the test temperature and humidity to more accurately reflect real-world indoor basements (65 °F / 60 % RH instead of the old 80 °F / 60 % RH). This change reduced stated capacities significantly — a unit once marketed as "70-pint" is now typically rated at 50 pints under the new standard while pulling the same real-world moisture. The MAD50PS1WS was rated under the new protocol, so its 50-pint figure is a like-for-like benchmark you can trust.
Do I need to buy a drain hose separately?
Yes. Midea does not include a drain hose in the box. You'll need a standard 5/8-inch inner-diameter garden hose or dedicated appliance drain hose. For gravity draining, any flexible hose of appropriate length works. For use with the built-in pump, ensure your hose is rated to handle the pump's pressure — a standard garden hose is typically fine.
Can the MAD50PS1WS run in a cold basement in winter?
It's rated to operate down to 41 °F (5 °C), which is lower than most competitors. At those temperatures, expect reduced capacity — perhaps 30–35 pints per day instead of 50 — but the unit should continue operating without excessive frost build-up. If your basement drops below 41 °F, most dehumidifiers (this one included) aren't the right tool; a desiccant-based model would be more appropriate.
How often does the filter need cleaning?
Midea recommends inspecting and cleaning the washable mesh filter every two weeks during active use. In practice, a monthly rinse under lukewarm water is sufficient in average dusty basement conditions. Allow the filter to dry completely before reinstalling to avoid introducing moisture back into the unit.
Is 50 pints enough for a 1,500-square-foot basement?
In most cases, yes. Midea rates this unit for up to 4,500 square feet, though real-world capacity depends heavily on how damp the space is, ceiling height, and ventilation. A 1,500 sq ft basement with moderate dampness will typically be handled comfortably. If your basement has standing water issues or an active water intrusion problem, address the source first — no dehumidifier is a substitute for waterproofing.