Best Dehumidifiers for RVs
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Moisture sneaks up fast in an RV—fogged windows, musty cushions, peeling wallpaper. The right dehumidifier makes travel days and storage seasons a lot kinder. In tight rigs, what matters most is power use, noise, low-temperature performance, and whether you can drain continuously into a sink or shower pan.
How I researched
I compared late-2025 dehumidifier deep dives and manuals, prioritized moisture removal vs. watt draw, checked continuous-drain options and low-temp operation (important for shoulder seasons), and noted which models are current U.S. variants. I weighed real-world fit for RVs—size/weight, operating temps, power consumption—and ownership factors like filters and warranty. This guide focuses on models with verifiable specs; if a detail couldn’t be confirmed, I say so.
Top picks
Frigidaire 22-Pint (FHDD2234W1/FFAD2234W1) — Best for full-time RVs on shore power
A compact, reliable compressor unit with continuous drain and true low-temp operation—great when you’re plugged in.
Why it wins: Operates down to 41°F and supports continuous drain, so you can set-and-forget into a shower pan or sink during cool, damp spells.
- Wi-Fi Enabled: Effortlessly control your dehumidifier from anywhere with the Frigidaire app or connect it to your Amazon Alexa or Google Home devices for smart, hands-free humidity management
- Energy-Efficient Performance: This Energy Star-certified dehumidifier uses less energy to deliver powerful humidity control, helping you reduce energy usage and lower your utility bills
- Convenient Drainage Options: Choose between two hassle-free water drainage methods – use the easy-carry water bucket for quick manual removal or the continuous drain option to skip emptying the bucket
Pros
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Runs at low temps down to 41°F
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Continuous-drain option built in
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Compact footprint; easy bucket access
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Energy Star certified
Cons
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About 260W draw—better on hookups
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Heavier than minis for travel days
Trade-offs / Who should skip
Skip if you boondock often without an inverter—power draw adds up. If you mostly winter camp below freezing, a desiccant unit (pick #3) tolerates colder interiors.
Scores: Performance 4.5/5 · Power Draw 3/5 · Ease of Use 4.5/5 · Value 4/5
Midea Cube 20-Pint (MAD20S1QWT) — Best for long runs & tiny footprints
Unique lift-and-twist design with an extra-deep bucket and Wi-Fi control—ideal when you want hours of unattended drying.
Why it wins: Covers small-to-medium RVs, nests for storage, and supports continuous drain; the deep bucket means fewer dumps when you can’t plumb a hose.
- 1,500 Sq.Ft. OF COVERAGE - Midea dehumidifier with drain hose is able to collect 20 pint (Similar to 30 PT-2012 DOE) of water a day and adjust humidity from 35% to 85%, perfect for use for basement, bathroom, bedroom, or crawlspace.
- SMALLER FORM, LARGER CAPACITY - Up to 3X larger water tank allows the Midea Cube dehumidifier to operate up to 3X longer than a conventional dehumidifier. You can enjoy more time without the hassle of emptying the water tank. Removable Bucket with 3.2 Gallons/12L bucket size.
- DEHUMIDIFIER WITH DRAIN HOSE allows CONTINUOUS DRAIN OPTION - Versatile, no-bucket option provides more flexibility to remove moisture. You can remove the water tank and place the unit above the sink using the included drain hose, or position it over a floor drain, near a window or door.
Pros
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Lift-and-twist cube stores small
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Continuous drain + smart app
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Big bucket = fewer dumps
Cons
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Similar power needs to other 20–22 pint units
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No built-in pump on 20-pint model
Trade-offs / Who should skip
Great for coastal humidity on shore power. Boondockers will prefer a mini or passive pick.
Scores: Performance 4.3/5 · Power Draw 3/5 · Ease of Use 4.3/5 · Value 4.2/5
Ivation 13-Pint Desiccant (IVADDH06) — Best for cold-weather RVing
A desiccant rotor keeps removing moisture in chilly rigs where compressors struggle.
Why it wins: Rated to work from ~33°F–104°F and includes a drain hose; power is roughly 280–470W depending on mode, so it still favors hookups but excels in the cold.
- 13-PINT DESICCANT DEHUMIDIFIER – Highly Efficient Desiccant Rotor Removes Moisture, Odors & Mold While Warming Ambient Air; Perfect for Colder Seasons
- LIGHTWEIGHT BUT POWERFUL – Enjoy Adjustable Humidity Control & Whisper Quiet Operation for Small Spaces Up to 270 Sq/Ft in Home, RV, Boat or Laundry Room
- USER-FRIENDLY LCD DISPLAY – Sleek Digital Interface Lets You Power On/Off & Adjust Humidity, Fan Speed, Timer/Sleep Mode, Vent Swing & Screen Brightness
Pros
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Works in near-freezing interiors
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Continuous-drain hose included
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Lighter than many compressor units
Cons
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Higher watt draw than minis
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Smaller tank; plan to drain
Trade-offs / Who should skip
Choose if you camp cold and damp. If you mainly chase summer and dry heat, a 20–22 pint compressor (pick #1 or #2) removes moisture faster per watt.
Scores: Performance 3.8/5 · Power Draw 2.5/5 · Ease of Use 4/5 · Value 3.7/5
Pro Breeze PB-03-US Mini — Best ultra-quiet for bunks & small rigs
A Peltier (thermoelectric) mini that sips power and keeps closets or a small sleeping area dry.
Why it wins: Truly compact with ~40W consumption; ideal for overnight use near beds and for smaller trailers.
- COMPACT & SMALL DEHUMIDIFIER: Lightweight, compact, and portable, this mini dehumidifier removes up to 18 oz of water per day with a 52 oz water tank capacity. They can cover up to 3000 cubic feet (250 sq.ft), leaving ample space for the appliances to function as dehumidifiers for bathroom and moisture absorbers for closet.
- SAFE DEHUMIDIFIER WITH AUTO SHUT-OFF FUNCTION: When full, the dehumidifier will automatically shut off and the LED light will turn-on, indicating that the water tank needs draining. Simply empty the water tank and place it back into the dehumidifier. This easy-to-use dehumidifier acts as a humidity absorber capable of removing moisture at your office, home, and even when you are out camping, making it a great addition to any household.
- ULTRA-QUIET & EFFICIENT DEHUMIDIFIER FOR BEDROOM: The Built-in Thermo-Electric Cooling Technology (Peltier) operates without a compressor, providing whisper quiet operation in your bedroom, bathroom, and office. This means you can read, work, sleep, and engage in other activities without any noise disruptions and experience the benefits of fresh high-quality air.
Pros
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~40W power draw
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Quiet—no compressor
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Light and easy to stow
Cons
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Limited moisture removal for whole rigs
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No continuous drain
Trade-offs / Who should skip
Perfect for sleeping areas, small trailers, and cabinets. If you wake up to dripping windows across the whole coach, step up to a 20–22 pint unit.
Scores: Performance 2.8/5 · Power Draw 4.8/5 · Ease of Use 5/5 · Value 4/5
Eva-Dry EDV-365 Air-Dry — Best passive option for closets & bins
Rechargeable desiccant cylinders that work with no power while in use—great for boondocking and storage.
Why it wins: Each cylinder absorbs several ounces and covers small enclosed spaces; recharge on the base for a couple of hours and rotate through closets and bins.
- Dual Cylinder Design: Includes two dehumidifying cylinders that operate without electricity, offering enhanced moisture absorption and ensuring optimal performance in small enclosed spaces.
- Fast Renewal Cycle: Achieves a full renewal (indicator beads turn back to orange) in approximately 2 hours when placed on the included blower base, allowing for continuous moisture control without long wait times.
- Color-Changing Indicator: Indicator beads change from orange (dry) to green (wet), providing a clear visual cue when renewal is needed.
Pros
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Zero draw during absorption
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Mess-free, no spills
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Great for closets, safes, storage
Cons
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Not for whole-coach drying
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Needs periodic recharge
Trade-offs / Who should skip
Use these in wardrobes, under-bed bins, and pantries. For living areas, pair with a mini or compressor unit.
Scores: Performance 2.5/5 · Power Draw 5/5 · Ease of Use 4/5 · Value 4.2/5
Quick compare
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Frigidaire 22-Pint — Best for full-time hookups: low-temp (41°F) and continuous drain; heavier, ~260W.
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Midea Cube 20-Pint — Best for long runs & storage: deep/nesting bucket, Wi-Fi, continuous drain; typical 20-pint power needs.
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Ivation 13-Pint Desiccant — Best for cold weather: works from ~33°F; higher watts than minis; includes drain hose.
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Pro Breeze PB-03 — Best ultra-quiet mini: ~40W, tiny and simple; limited capacity, no drain.
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Eva-Dry EDV-365 — Best passive/boondocking: no draw while working; recharge on base; for closets and bins.
Buying guide
How big a unit do I need?
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Whole-coach dampness (shore power): a 20–22 pint (DOE 2019) compressor unit dries fastest and supports continuous drain.
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Spot problems or boondocking: a mini Peltier or passive desiccant keeps small spaces dry with minimal or no draw.
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Cold camping: desiccant handles low temps better than compressors.
Drainage in an RV
Use a short hose and gravity-drain to a shower pan or sink with compressor units. Keep the hose short and sloped.
Power & noise
Peltier minis are quiet and sip ~40W. Compressor units remove more moisture per hour but generally draw a few hundred watts; Frigidaire is roughly ~260W. Desiccants are steady but can draw ~280–470W depending on mode.
Warranty & support
Most picks here carry a 1-year limited warranty. If that’s a concern, consider purchasing with a credit card that extends coverage.
FAQs
Q: Can I run a dehumidifier overnight in an RV?
A: Yes—use the auto-shutoff bucket or (better) continuous drain. Place on a level surface and keep vents clear. Frigidaire and Midea support continuous drain out of the box.
Q: What’s the best option for storage season with no power?
A: Passive desiccant like Eva-Dry cylinders in closets/compartments; recharge them before you store the RV.
Q: My rig is cold in the mornings—do compressors still work?
A: Many compressors are rated to 41°F; below that, performance drops. Desiccant units are rated for colder operation and keep working in chilly interiors.
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