Best RV Dehumidifiers of 2020

Categories Dehumidifiers
Avoid RV damage from moisture.

As we travel across the country, the RV becomes our home away from home. It has to be cozy, comfortable and livable. However, moisture and dampness can compromise all of this.

An RV is an enclosed space. As such, everyday activities such as cooking and showering can cause a significant amount of water vapor. When moisture builds up, it can not only become uncomfortable, but it can also damage soft furnishings and even cause mold.

If mold and mildew begin to grow within your RV, it will quickly spread and can become a serious health risk. The most effective way to keep moisture and mold at bay is by using the best RV dehumidifiers on the market.

How to Find the Best RV Dehumidifier

Having a dehumidifier in an RV is more critical than most people think. Moisture and dampness can cause rust, deterioration of soft furnishings and the growth of mold. If mold begins to grow within your RV, you could experience several health effects. These include allergies, asthma attacks and even nausea and headaches (1).

Due to the compromised space of an RV, you have to be careful when choosing a dehumidifier. A large 50-pint unit simply won’t fit and it will use too much energy. We’ve put together a simple guide for you to find the best RV dehumidifier for you.

Size and Weight

When traveling in an RV, having a dehumidifier that can easily be moved from one place to the other is beneficial. Maybe you’ve noticed a significant amount of moisture in the bathroom or quickly need the dehumidifier in the kitchen. A portable unit is lightweight and compact, it has to be able to fit in small areas or on a table or shelf.

Keep in Mind

Weight plays a significant role in how your RV drives and how much gas it uses. An overpacked RV is not only tricky to drive, but it’s also a risk for others on the road. Always include the full weight (full tank) of the dehumidifier when calculating the final weight for your RV (2).

Choosing a lightweight dehumidifier is the best way to avoid having to compromise other necessities. Small dehumidifiers generally weigh between 2 and 5 pounds, depending on capacity and other factors.

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Energy Consumption

Just as space is compromised in an RV, so is energy. If you camp at a campsite with hook-ups, this may not be an issue. However, if you like to travel off-grid where you rely on a generator and the RV’s battery, energy consumption is essential.

Some dehumidifiers will use a significant amount of power during each cycle, so it’s also important to limit yourself. Consider when you most need it — for instance, in the early hours of the day or late afternoon and evening (3). Turn the unit off when the humidity is at a normal level to avoid wasting energy.

However, it’s not always the weather we can blame for high humidity within an RV. Things like showering, cleaning and cooking will also cause a significant amount of water vapor.

If you travel off-grid, choose an energy-efficient dehumidifier. You can also choose a moisture absorber, such as the Camco on our list below. These don’t require any electricity or batteries; all you have to do is refill it when needed.

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Dehumidifiers are generally rather noisy due to the moving parts of the compressor. However, having a loud, vibrating machine when you’re trying to enjoy nature at its best can be disturbing for you and others.

So we highly recommend choosing a unit without a compressor. These will usually use thermoelectric technology that causes no sounds or vibrations. You’ll find this in most small dehumidifiers since there simply isn’t room for a compressor.

Tank Capacity

This information is essential to know whenever you consider a dehumidifier. The tank capacity refers to how much the units’ reservoir can hold. Most small dehumidifiers can hold around 16 ounces.

It’s important to remember that smaller tanks will need to be emptied more often, whereas a larger capacity can go for longer. If you’re traveling in humid locations, a larger capacity will be beneficial. However, a larger tank will also make the unit heavier, especially when full.

The Best RV Dehumidifiers of 2020

Having a good dehumidifier on board as you’re traveling in your RV is essential to keep moisture and mold at bay. As we found the best RV dehumidifiers, energy consumption, size and weight were strict criteria.

After extensive research, we sorted the good from the bad. Here are the five best RV dehumidifiers:

1. Lonove 800ml Portable Dehumidifier

Best Airflow RV Dehumidifier

LONOVE Dehumidifier - 2200 Cubic Feet Small Dehumidifiers for Home Bedroom Bathroom Basement Closet RV Camper, 800ml (27 oz) Full Auto-Off Portable Electric Mini Dehumidifier for Space
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To tackle fun adventures on the road, you need to be comfortable.

The Lonove portable dehumidifier will ensure you have a comfy RV environment to live in.

It’s a very lightweight and compact machine, but it works effectively while using minimum power.

We love how easy it is to use, as well as how quiet it is.

Why We Love It

Highly Effective

This dehumidifier is incredibly efficient, having not one but two air inlets. Its unique design allows it to draw air in from the front and back. Despite its small size, it can extract up to 11.8 fluid ounces of water a day in an area of up to 165 square feet.

No matter how high the humidity levels were in your RV, the Lonove dehumidifier will keep it below 50 percent. It will effectively work in temperatures between 59 and 104 degrees Fahrenheit.

Compact and Light

When traveling in an RV, weight is an important factor as you’re packing and planning. It’s not ideal to bring a 50-pound machine as you’ll have to compromise other necessities.

Fortunately, this dehumidifier allows you to bring what you need without worrying about weight. The Lonove weighs a little under 3 pounds; it’s very light and easy to pack. The small size enables you to place it anywhere within the RV.


We don’t want to disturb nature with a loud machine, right? The Lonove won’t exceed 30 decibels, so you can enjoy your trip and the peace of the open roads.


With a one-button control, we love how easy it is to operate. Simply press the large on/off button to activate or deactivate.

The water tank is a breeze to remove and empty, unlike many other dehumidifiers. You simply slide it out and empty it over a sink or outside. When it’s empty, slide it right back into place.


You don’t have to worry about getting to the dehumidifier in time as it’s filling up. Thanks to the auto-shutoff function, the unit will automatically turn off when the tank is full. It will notify you through the on/off button by changing color from blue to orange.

Keep In Mind

Bright Light

The on/off button has a very bright blue light when the unit is on. It can be slightly annoying, especially at night.

Additional Specs

Dimensions6.3 by 5.2 by 11.1 inches
Weight2.75 pounds
Area Coverage165 square feet
Effectiveness11.8 ounces per day
Tank Capacity27 ounces

2. Cosvii Portable Mini Dehumidifier

Most Energy-Efficient RV Dehumidifier

COSVII Small Dehumidifier Portable Mini Dehumidifier with 500ml Water Tank and Auto Shut-Off for Basement Bedroom Bathroom Baby Room Kitchen Office(150 sq ft)
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If you’re on a budget, but still want an effective dehumidifier, this is an excellent option.

The Cosvii Mini Dehumidifier is highly effective yet energy efficient. It works with very low energy consumption, making it an excellent fit for an RV.

This unit is a breeze to operate and is overall user-friendly. It’s easy to empty and will even turn off automatically when the tank is full.

Why We Love It

Energy Efficient

When traveling in an RV, power sources are sometimes rare, so you need something efficient. The Cosvii dehumidifier works very effectively on low-power consumption. It will also save energy by only working when humidity levels are above 40 percent.


Dealing with a loud, vibrating dehumidifier can be frustrating, especially in an RV. Luckily, this dehumidifier is ultra-quiet, producing less than 35 decibels when working.

Large Tank

Despite the small size, this dehumidifier can hold over 16 ounces of collected water. To ensure the tank won’t flood when full, the auto-shutoff function will automatically turn the unit off.

Easy to Use

There’s only one button to get familiar with, and that’s the on/off button. You don’t need to get the manual out every time, and there are no special settings to get used to.


This dehumidifier weighs only a little under 2 pounds. It’s the perfect addition to an RV adventure without having to compromise other essentials.

Keep In Mind

Raises Room Temperature

Although this compact dehumidifier is effective, it does have a tendency to create heat in the process. Some customers found that it raised the room temperature by about 5 degrees Fahrenheit. This might cause issues in an RV during the summer.

Additional Specs

Dimensions6.3 by 5.1 by 10.6 inches
Weight2 pounds
Area Coverage150 square feet
Effectiveness8.5 ounces per day
Tank Capacity16.9 ounces

3. Camco Miniature Dehumidifier

Best RV Dehumidifier for Off-Grid Adventures

Camco 44195 Fragrance Free Miniature Dehumidifier - Compact Size, Absorbs Up to 3X Its Weight in Water, Reduces Moisture and Humidity in Offices, Closets, Bathrooms, Kitchens, Boats, RVs and More
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If you need a dehumidifier that can follow you on any adventure, this moisture absorber is right for you. The Camco Miniature Dehumidifier contains calcium chloride that effectively absorbs moisture and dampness, creating a comfortable environment.

It’s super simple to use and can absorb up to three times its weight in moisture. However, it does require refills. Still, you don’t have to worry about power outlets or recharging batteries. And, there are no loud sounds or vibrations to deal with.

Why We Love It

Excellent for Small RVs

It can be challenging to find a suitable dehumidifier for a small RV or caravan. Luckily, Camco has a solution. This moisture-absorbing mini dehumidifier is the perfect fit for any small space.


Inside the compact box, you’ll find calcium chloride, which is a mixture of chloride and calcium. It’s one of the most effective moisture absorbents, after silica gel and clay. Calcium chloride is highly effective against odors and musty air as well, improving your overall RV environment.

Reusable Container

These mini dehumidifiers are an excellent choice for long-term solutions as you can reuse the container. You can purchase refills whenever needed.

Requires No Power or Batteries

Having a dehumidifier that requires a power outlet at all times isn’t always possible in an RV. If you like to travel off-grid frequently, it simply won’t be beneficial.

We prefer this type of dehumidifier for off-grid travels since there’s no need for electricity or batteries. If you’re going away for an extended period, pack a few refills to avoid running out when you’re enjoying the outdoors.

Keep In Mind

Refills Are Required

Before you hit the road for the summer, you must consider how many refills you might need. If you run out while on the road, it can be challenging to get your hands on a refill.

Additional Specs

Dimensions4.7 by 5.8 by 3.3 inches
Weight0.4 pounds
Area CoverageN/A
EffectivenessAbsorbs three times its own weight in water
Tank CapacityN/A

4. Seavon Mini Electric Dehumidifier

Best Quiet RV Dehumidifier

SEAVON Electric Upgraded Dehumidifier for Home, 2000 Cubic Feet (195 sq ft) Portable and Compact 500ml (16 oz) Capacity Quiet Small Dehumidifiers for Basements, Bedroom, Bathroom, RV, Closet, Auto Shut Off
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Customers love this compact dehumidifier, and it’s easy to see why. It’s the perfect addition to a camper or RV thanks to its weight and size. It uses thermoelectric technology to create dehumidification, instead of a compressor, which makes it whisper-quiet.

This dehumidifier is highly effective despite its compact size. It will remove up to 9 ounces of moisture per day and can hold up to 16 ounces in the tank. There’s only one button to use when turning the unit on or off and it’s equipped with an auto-shutoff function.

Why We Love It

Large Tank

Having a large — 16-ounce — tank means the unit can run for longer without the need to empty it. It’s a breeze to empty by sliding the reservoir out of the bottom of the unit. There’s no need to open anything, simply pull the plug out and empty it over a sink or drain.


It can be tricky to remember to empty the water tank in time, which often leads to overflow and a broken dehumidifier. Fortunately, Seavon has equipped its Mini Dehumidifier with an auto-shutoff function. This function will automatically turn the device off when the reservoir reaches its full capacity.


Because there’s no noisy compressor, the dehumidifier is ultra-quiet. You can easily use it at night when everyone’s sleeping without worrying about disturbing your family or fellow campers.


When traveling in an RV or camper, space is limited. The Seavon Mini Dehumidifier won’t take up much space and can easily stand on a small table or shelf out of sight.

Keep In Mind

Difficult to Clean

Despite working effectively, it’s rather difficult to clean. The lid of the tank can’t be removed, making it tricky to clean it properly.

Additional Specs

Dimensions6.5 by 5.3 by 11.5 inches
Weight2.4 pounds
Area Coverage170 square feet
Effectiveness9 ounces
Tank Capacity16 ounces

5. Ivation 13-Pint Dehumidifier

Best Dehumidifier for Large RVs

Ivation 13-Pint Small-Area Desiccant Dehumidifier Compact and Quiet - With Continuous Drain Hose for Smaller Spaces, Bathroom, Attic, Crawlspace and Closets - For Spaces Up To 270 Sq Ft, White
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For a larger RV, we prefer a larger dehumidifier — and this checks all the boxes. It’s compact and lightweight, yet powerful enough to cover large areas of up to 270 square feet. The Ivation dehumidifier comes with multiple features and settings to suit your preferences.

Frequent RV’ers love this dehumidifier due to how effective it is and how easy it is to operate. It will remove up to 208 fluid ounces of moisture per day and protect your interior from mold and dampness.

Why We Love It

Excellent for Bigger RVs

In a large RV, a mini dehumidifier might not be enough, so we highly suggest this one from Ivation. It’s a 208-ounce desiccant dehumidifier that uses a desiccant rotor to remove high amounts of moisture. Ivation recommends that it’s used in areas of up to 270 square feet, so it’ll be able to cover an entire RV.


Despite being larger than the previous units we’ve reviewed, it’s still lightweight — weighing only a little over 11 pounds. It’s also compact and easy to fit inside the compromised space of an RV or camper.

Smart Features

Because this is larger than others, we do expect to get a little more for our money. Luckily, this unit provides everything you’ll need. It comes with an advanced LCD control display that’s easy to read so you can set your desired humidity level.

There are different fan speeds to choose between and even a sleep mode for nighttime with dimmed lights. The air vent can be programmed to swing, which will create a better airflow within the RV. You can also set the timer for the duration and automatic shutoff.

Easy to Maintain

Larger dehumidifiers are usually more challenging to empty, but this unit is different. The tank easily slides out at the bottom and slides right back into place when emptied. The air filter can also be removed and cleaned using water or vacuum.

Keep In Mind

Produces Hot Air

Although this dehumidifier works effectively, it does produce a significant amount of hot air. This can be bothersome, especially in the summer.

Additional Specs

Dimensions10.6 by 6.8 by 17.5 inches
Weight13.8 pounds
Area Coverage270 square feet
Effectiveness208 ounces per day
Tank Capacity60 ounces

Detailed Comparison Chart

ProductBestDimensionsWeightArea CoverageEffectivenessTank Capacity
Lonove Portable DehumidifierAirflow6.3 x 5.2 x 11.1″2.75 lbs165 sq ft11.8 oz per day27 oz
Cosvii Portable Mini DehumidifierEnergy-Efficient6.3 x 5.1 x 10.6″2 lbs150 sq ft8.5 oz per day16.9 oz
Camco Miniature DehumidifierOff-Grid Adventures4.7 x 5.8 x 3.3″0.4 lbsN/AAbsorbs three times its own weight in waterN/A
Seavon Mini Electric DehumidifierQuiet6.5 x 5.3 x 11.5″2.4 lbs170 sq ft9 oz16 oz
Ivation 13-Pint DehumidifierLarge RVs10.6 x 6.8 x 17.5″13.8 lbs270 sq ft208 oz per day60 oz
Jump to the Full Rv Dehumidifiers Reviews

Let’s Hit the Road

Spending the summer months traveling across the country in your RV gives you a real feeling of freedom. The RV is your home for this time, so it has to be comfortable. However, high humidity can compromise that. A high amount of moisture can damage the interior as well as cause mold, mildew and dust mites.

Using the best RV dehumidifiers is the best way to keep moisture and dampness at bay. Finding the right one for your RV is crucial. Things like size, weight and energy consumption are essential factors to consider.

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About the Author

Matthew Sullivan

As a writer with keen interests in DIY and HVAC, Matthew has always found great pleasure in taking things apart and learning how to put them back together.
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