Best Dehumidifier for a Garage or Workshop
A 2-car garage typically needs a 35-pint dehumidifier; larger or damper garages need 50 pints. The Frigidaire 35-Pint ($220) handles standard garages, while the Midea Cube 50 ($260) covers large workshops. Prioritize continuous drain since you will not want to empty a bucket in the garage.
Garage / workshop
Moderate to heavy
35-50 pint
Best Dehumidifier for a Garage: Top Picks Compared
| Model | Best For | Capacity | Coverage | Noise | Drainage | Price |
|---|---|---|---|---|---|---|
| Frigidaire 35-Pint | Best 35-Pint Overall | 35 pt | 2,500 sq ft | ~51 dB | Gravity drain | $220 |
| Midea Cube 50-Pint Dehumidifier | Best Overall | 50 pt | 4,500 sq ft | ~47 dB | Gravity drain hose included | $260 |
| GE 50-Pint with Pump | Best for Basements Without a Floor Drain | 50 pt | 4,500 sq ft | ~52 dB | Built-in pump (up to 16 ft) | $218 |
Understanding Your Needs
Garages collect moisture from wet vehicles, concrete floors, poor insulation, and outdoor air infiltration. The result is rust on tools, mold on stored items, and a damp smell that seeps into the house. Noise is rarely a concern in a garage, so prioritize capacity and drainage convenience. A continuous drain setup (gravity hose to a floor drain or pump to a utility sink) means you never have to think about emptying a bucket. Durability also matters since garages see wider temperature swings and more dust than indoor spaces.
Why These Picks
The Frigidaire 35-Pint handles standard 2-car garages (250-500 sq ft) and features a well-designed, spill-resistant reservoir. For larger workshops or garages with significant moisture, the Midea Cube 50 provides the capacity with a 4.2-gallon tank. If your garage lacks a floor drain, the GE 50-Pint with Pump solves the drainage problem.
Top Picks
Frigidaire 35-Pint
Frigidaire
Strong moisture removal, sturdy build, and a well-designed reservoir that doesn't spill when you carry it. The best mid-capacity dehumidifier available.
- + Well-designed, spill-resistant reservoir
- + Sturdy construction
- + Wi-Fi available as an option
- + Good for medium-sized spaces
- - Moderate noise (~51 dB on high)
- - Wi-Fi model costs more
Midea Cube 50-Pint Dehumidifier
Midea
★4.6·3,338 ratings
Fastest moisture removal in its class, quietest 50-pint unit available, and a 4.2-gallon tank that lasts days between empties. This is the unit most people should buy.
- + 3x larger tank than competitors (4.2 gal)
- + Quietest 50-pint unit (~47 dB)
- + Wi-Fi with Alexa and Google support
- + Compact cube design saves floor space
- + Gravity drain hose included
- - No built-in pump
- - App can be buggy on first setup
GE 50-Pint with Pump
GE
★4.6·3,239 ratings
The built-in pump pushes water up to 16 feet to a sink, window, or any drain. Set it and forget it. If your basement has no floor drain, this is the one.
- + Built-in pump drains up to 16 ft vertically
- + True set-and-forget operation
- + Sturdy, well-built construction
- + Easy-to-read display
- - No Wi-Fi or smart features
- - Louder than the Midea Cube (~52 dB)
- - Smaller tank (1.8 gal) if not using pump
Complete Your Setup
Inexpensive add-ons most buyers pair with a new dehumidifier.
★4.6·5,341 ratings·$12.97
Run continuous gravity drainage to a floor drain or sump so you never empty the tank. Standard 1/2-inch hose port fits most units.
View on Amazon →
★4.7·5,250 ratings·$47.04
No floor drain nearby? This pump pushes water up and out to a sink or window. Pairs with any unit that lacks a built-in pump.
View on Amazon →
★4.6·62,078 ratings·$8.97
Track room humidity so you know your unit is hitting target. Aim for 30 to 50 percent to stop mold and dust mites.
View on Amazon →
★4.3·4,927 ratings·$18.95
Stop compressor hum and walking on hard floors. Slip these under the feet to cut noise and keep the unit in place.
View on Amazon →
★4.6·18,723 ratings·$14.99
Share one spigot or drain line between the dehumidifier and another hose. Lead-free brass with independent on/off valves.
View on Amazon →What Size Dehumidifier Does a Garage Need?
A standard 2-car garage of 400 to 500 sq ft needs a 35-pint dehumidifier (DOE 2020 standard) for moderate dampness. A 3-car garage, a workshop with damp concrete, or any garage in a humid climate moves up to 50 pints. The math: garages carry a 1.2x moisture-load modifier because uninsulated concrete floors, vehicle drip, and outdoor air infiltration push humidity higher than a finished interior room of the same size. If you store tools, electronics, or a vehicle you care about, size up rather than down. The Frigidaire 35-Pint ($220) covers most 2-car garages, and the Midea Cube 50 ($260) covers large workshops up to 4,500 sq ft.
Continuous Drain Is the Priority in a Garage
Nobody wants to walk out to the garage every day to empty a water bucket. Set up continuous drainage from the start. If your garage has a floor drain lower than the unit, run a gravity hose to it and you are done. If it does not, the GE 50-Pint with Pump ($218) pushes water up to 16 feet to a utility sink or out a window, so it runs unattended for the whole humid season. Continuous drainage also prevents the auto-shutoff that leaves a full-tank unit sitting idle while humidity climbs back up.
Cold Garages and Winter Operation
Most consumer dehumidifiers stop working below 41 degrees F because the coils frost over. An unheated garage in a cold climate will drop below that for months. If you need year-round moisture control in a cold garage, a low-temperature unit with auto-defrost like the AlorAir Sentinel HD55 ($800) keeps running down to 36 degrees F. For garages that stay above 50 degrees F, a standard 35 or 50-pint unit with auto-defrost is enough.
Frequently Asked Questions
What size dehumidifier do I need for a 2-car garage?
A 2-car garage of 400 to 500 sq ft needs a 35-pint dehumidifier (DOE 2020 standard) for moderate dampness. The Frigidaire 35-Pint ($220) is the right pick for this size. If your garage runs damp, sits in a humid climate, or doubles as a workshop, step up to a 50-pint unit like the Midea Cube 50 ($260), which covers up to 4,500 sq ft.
Will a dehumidifier stop my tools from rusting?
Yes. Rust forms when relative humidity stays above roughly 50% to 55% on bare metal. A dehumidifier that holds your garage between 40% and 50% RH stops surface rust on tools, fasteners, and machinery before it starts. Pair it with continuous drainage so the unit runs through the whole humid season without you emptying a bucket.
Can a dehumidifier run in a cold garage in winter?
Standard units stop working below 41 degrees F because the coils frost over. For an unheated garage in a cold climate, you need a low-temperature unit with auto-defrost. The AlorAir Sentinel HD55 ($800) runs down to 36 degrees F. If your garage stays above 50 degrees F, a standard 35 or 50-pint unit with auto-defrost handles it.
Does a garage dehumidifier need a pump?
Only if there is no floor drain lower than the unit. If your garage has a floor drain, a gravity hose drains it for free. If it does not, the GE 50-Pint with Pump ($218) lifts water up to 16 feet to a utility sink or window so the unit runs unattended. Either way, set up continuous drainage rather than relying on the bucket.
Sizing Note
Garages get a 1.2x sizing modifier because concrete floors and poor insulation increase moisture load compared to finished interior spaces.
Related Guides
Or use the sizing calculator and the basement size chart for exact pint capacity.
Not sure this is the right fit?
Use our free sizing calculator to get a personalized recommendation based on your exact room size, dampness level, and climate zone.
Try the Sizing Calculator