
Basement moisture is not just uncomfortable — it breeds mold, attracts dust mites, warps wood, and damages stored belongings. The Frigidaire 50-pint dehumidifier is designed for serious moisture problems in large spaces. After 30 days of continuous testing in a 1,200 square foot basement, here is our full review.
Performance: Handling Serious Moisture
We tested the Frigidaire in an unfinished basement with initial relative humidity at 72% — well above the 50% threshold where mold growth begins.
| Metric | Result | Rating |
|---|---|---|
| Time to reach 50% humidity | 6 hours | Good |
| Time to reach 45% humidity | 9 hours | Good |
| Steady-state maintenance | 43-47% | Excellent |
| Daily extraction (high humidity) | 47 pints | Near rated |
| Coverage tested | 1,200 sq. ft. | Matches rating |
The Frigidaire brought our 72% humidity basement down to 50% in approximately 6 hours on its first run. After the initial dehumidification, it maintained steady humidity between 43-47% with minimal cycling. The unit extracted close to its rated 50 pints per day during the first 48 hours of heavy dehumidification.
Built-In Pump — The Key Feature
The standout feature is the built-in pump for continuous drainage. Most dehumidifiers rely on gravity drainage, which means the drain hose must run downhill to a floor drain. In basements without floor drains, this is often impossible.
The Frigidaire's pump pushes water vertically up to 15 feet, allowing you to drain into a utility sink, window, or elevated drain. In our testing, the pump ran reliably for the full 30-day test period without issues.
Setup is simple: Connect the included drain hose, set your target humidity, and forget about it. No emptying buckets, no monitoring — truly hands-free operation.
Without the pump, you can use the 13.1-pint collection bucket. But emptying a bucket daily defeats the purpose of a set-and-forget dehumidifier. The pump is the reason to buy this model over cheaper alternatives.
Noise Levels
| Mode | Measured dB | Comparable To |
|---|---|---|
| Low | 47 dB | Quiet office |
| High | 51 dB | Moderate rain |
| Compressor cycling | 55 dB | Normal conversation |
The Frigidaire is not quiet. At 47-51 dB during operation, you will hear it from adjacent rooms. The compressor cycling adds occasional louder bursts. For a basement installation where noise is not a concern, this is fine. For a living space, it may be too loud.
Energy Efficiency
The Frigidaire is Energy Star certified, drawing approximately 580 watts during operation.
| Item | Cost | Notes |
|---|---|---|
| Electricity (running 12 hrs/day) | ~$25/month | Based on $0.12/kWh |
| Electricity (running 24/7) | ~$50/month | First few weeks in damp basements |
| Filter cleaning | $0 | Washable filter |
| Annual estimate | ~$200-400 | Depends on humidity levels |
Dehumidifiers are more expensive to run than air purifiers. Plan for $25-50/month in electricity depending on how damp your basement is. The good news: once initial moisture is removed, the unit cycles less frequently, reducing energy use.
Build Quality and Design
The Frigidaire is a utilitarian appliance — no one buys a dehumidifier for its looks. It measures 24.5 x 15.8 x 11.3 inches and weighs 44 pounds. Caster wheels make it easy to move despite the weight.
The control panel is straightforward: digital humidity display, target humidity buttons, fan speed toggle, timer, and continuous drain mode. No app, no Wi-Fi — just simple, reliable controls.
The washable filter is accessible from the back panel. Clean it every two weeks for optimal airflow. A clogged filter reduces efficiency significantly.
Pros and Cons
What We Like
- +Powerful 50-pint capacity
- +Built-in pump for continuous drain
- +Energy Star certified
- +Easy-to-clean washable filter
Could Be Better
- −Louder than competitors
- −Bulky design
Who Should Buy This
The Frigidaire 50-pint is ideal for:
- Damp basements (up to 1,500 sq. ft.)
- Crawl spaces with moisture issues
- Garages and workshops in humid climates
- Flood recovery — high capacity for quick moisture removal
- Mold prevention — maintaining humidity below 50% stops mold growth
It is NOT ideal for:
- Bedrooms or living spaces — too loud
- Small rooms — overkill; consider the Midea 20-pint instead
- Energy-conscious buyers — dehumidifiers use significant electricity
How It Compares
The Verdict
The Frigidaire 50-pint dehumidifier is the best option for serious basement moisture problems. The built-in pump eliminates the hassle of gravity drainage or bucket emptying, and the 50-pint capacity handles even very damp basements effectively.
If your basement is smaller (under 500 sq. ft.) or your moisture problem is mild, save money with the Midea 20-pint ($180). But for large basements with persistent dampness, the Frigidaire's combination of capacity, pump, and reliability makes it our top dehumidifier recommendation.
Rating: 4.5/5
Frequently Asked Questions
How much does it cost to run a 50-pint dehumidifier?+
Approximately $25-50 per month in electricity, depending on how many hours per day it runs. Initial dehumidification of a very damp basement requires more energy. Once humidity stabilizes, costs decrease as the unit cycles less frequently.
Do I need a 50-pint or 20-pint dehumidifier?+
For basements over 500 sq. ft. or with humidity consistently above 60%, choose 50-pint. For smaller spaces or moderate humidity (50-60%), a 20-pint unit is sufficient and uses less energy.
Can I leave a dehumidifier running 24/7?+
Yes. The Frigidaire is designed for continuous operation. With the built-in pump and continuous drain hose, it can run indefinitely without attention. The auto-shutoff activates if the bucket is full (when not using pump drainage).
How often should I clean the dehumidifier filter?+
Every two weeks. The washable filter slides out from the back panel. Rinse under running water, let it dry completely, and reinstall. A clogged filter significantly reduces dehumidification efficiency.
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