Best RV Dehumidifier. Small Dehumidifier for RVs & Campers

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Excess moisture build-up inside your RV is bad for your motorhome, your wallet, and your health and well-being. Not only will high humidity levels in your RV cause aesthetic and potentially even structural damage, but it can also make your home-away-from-home a breeding ground for bacteria and mold. Installing the best RV dehumidifier will rapidly reduce your relative humidity down to safe levels.

Best RV Dehumidifier

The best RV dehumidifier is lightweight, portable, and energy-efficient. Capable of drawing out moisture from your entire trailer, the best models combine performance with a compact design to ensure that they won’t overcrowd your small living space.

Signs You Need An RV Dehumidifier

So, how do you know if you need an RV dehumidifier? If you notice several of the following signs, you should install a dehumidifier in your RV as soon as possible.

  • Window condensation
  • Mold spots on ceiling or walls
  • Stale, musty odor
  • Blistering paint
  • Creaky wooden cabinets

Best Dehumidifier for RV

Here is our selection of the very best RV dehumidifiers. Check out our top-rated reviews and find your perfect model right here.

Pro Breeze Electric Dehumidifier

Pro Breeze Electric Dehumidifier

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The Pro Breeze Electric Dehumidifier is both compact and highly energy efficient, making it a great dehumidifier for your RV. Capable of removing up to nine ounces of water from your trailer’s air per day, it’s designed to be used in RV’s with a floor area of up to 150 square feet.

Drawing just 2.5 Amps, it’s a good choice for use when you’re on the road, as well as keeping your RV moisture and odor-free during periods in storage. However, note that it only works effectively above temperatures of 59 degrees F and not at all below 41 degrees F. So if you are looking for a dehumidifier for your RV in storage in a cold winter climate, you’ll need to take a look at some of our other RV dehumidifier reviews.

Portable and lightweight, this model weighs just 2.4 pounds. Measuring 7” long by 6” wide, it has a height of 11”, compact enough for multiple locations in your trailer. Thanks to its relatively large 16 ounce water tank, this unit shouldn’t require very frequent emptying. When it is full, it automatically shuts off and an LED alerts you to empty the tank.

Very easy to use and highly effective in small, damp, warm spaces, this compact dehumidifier represents good value for money. While there are similar cheaper models on the market, this version comes complete with a 12-month warranty for your peace of mind and testament to its build quality.

Eva-Dry Wireless Mini Dehumidifier

Eva Dry Wireless Mini Dehumidifier

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Designed to keep small enclosed spaces up to 333 cubic feet free from excess moisture, the Eva-Dry Wireless Mini Dehumidifier is a viable alternative to your regular disposable mini humidifiers for campers and closets. As it is rechargeable, it is also more eco-friendly, while the entire unit is non-toxic and pet and child-safe.

Capable of absorbing between four to six ounces of water over 20-30 days, the Eva-Dry Wireless Mini Dehumidifier could be a good choice for your RV closets or small campers. When the unit has reached its maximum absorbancy capacity, the silica beads change color from green to orange, indicating that it’s time to plug in the unit for a recharge.

Bear in mind that to dry out the beads for reuse, you will need a power source away from your RV, or else you will simply release the moisture removed back into it, defeating the purpose completely. You could plug it directly into your generator to recharge outside to recharge.

Realistically, this mini humidifier is only really suitable for removing excess moisture in closet-sized enclosed spaces. If you have your camper sat idle on your drive, it could help keep it fresh, provided you don’t have a serious excess moisture problem. It could also be an option for larger RVs with climate control that also dehumidifies, but still need a small dehumidifier to keep closed cabinets and closets moisture-free.

Relatively inexpensive and complete with a five-year warranty, if this model suits your circumstances and needs, it makes a great choice.

Camco Fragrance-Free Miniature Dehumidifier

Camco Fragrance Free Miniature Dehumidifier

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This Miniature Dehumidifier from RV specialists Camco is a really handy, cost-effective solution to prevent humidity build-up in small spaces. Ideal for keeping your camper fresh during winter storage, or use several throughout your larger travel trailer, this model uses calcium chlorate as the active moisture absorbent.

Highly portable and extremely compact, this mini dehumidifier for campers measures just 4.75” long by 5.88” wide, with a height of 3.31 inches. Place them in your closets, shower room, wherever you need to tackle excess humidity. They are silent and weigh next to nothing at just 8.1 ounces.

Obviously, these miniature dehumidifiers are not going to adequately tackle large rigs with excessive moisture problems. They will likely struggle to absorb enough moisture when you are actively using your trailer. Also, bear in mind that they will need regularly replacing – lasting between 1-6 months depending on the environment in which they are placed.

Inexpensive, completely silent, and requiring no power source, we think every RV owner who puts their rig into storage can definitely benefit from using a couple of these to keep moisture levels down. For when you’re RVing or if you keep your RV in an especially humid climate, you’ll want to look at our other RV dehumidifier solutions.

Ivation Powerful Mid-Size Thermo-Electric Intelligent Dehumidifier

Ivation Powerful Thermo-Electric Intelligent Dehumidifier

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The Mid-Size Thermo-Electric Intelligent Dehumidifier by Ivation combines efficiency and performance with a very compact size. Manufactured to remove moisture from small areas up to 100 square feet, this stylish dehumidifier is a popular choice for trailers and campers.

With no moving parts, it’s a good model for use on the road in an RV. This also makes it very quiet, so it won’t interrupt your day to day activities. Capable of removing up to 25 ounces of water from humid air per day, it is a lot more effective than most small dehumidifiers.

Thanks to its 68-ounce large water tank, you won’t have to empty it out every day and when you do, the unit automatically shuts down and alerts you via an LED situated at the front. Weighing just under five pounds with a handy carry handle at the back, it is easy to move around.

Despite its small size, measuring just 13.75” high by 8.58” wide and 7” deep, this dehumidifier comes with a built-in hydrostat. Not only does this make it easy to keep an eye on your current humidity levels in your trailer, it also allows you to program your desired RH level. The dehumidifier will turn itself on and off automatically to maintain this level, saving you energy.

If you are looking for a high performance dehumidifier for your travel trailer, this unit is quiet, easy to use, and allows you to set your desired humidity level. While this understandably pushes up the price a little, it is nonetheless a highly efficient RV dehumidifier that won’t take up too much space.

Ivation Powerful Small-Size Thermo-Electric Dehumidifier

Ivation RV Dehumidifier

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The Small-Size Thermo-Electric Dehumidifier by Ivation is designed to keep small spaces moisture-free, making it a good choice for your camper or small travel trailer. It removes between six to eight ounces of water per day and has a low 22.5W maximum draw – ideal for RV use.

Thanks to its 17-ounce water tank, it can hold around two days worth of water when operating at maximum capacity. This means you won’t have to worry about emptying it several times a day. Also, it benefits from an auto-shutoff. Once the tank is full, the unit cuts out and an LED indicator lights up to let you know it’s time to empty it.

As it does not feature a compressor, this mini dehumidifier is very quiet, so much so, you will barely notice it’s on. Measuring just 8.7” tall, it is extremely compact and a good choice for small spaces. If you have a larger RV, you may want to pick up one of these especially for your RV shower room or cupboards, to use in tandem with a larger model.

Otherwise, for campers and small trailers, this inexpensive dehumidifier for RVs will help to keep humidity levels down, protecting your RV from moisture damage and reducing related odors.

Hysure Portable Mini Dehumidifier for RV

Hysure Electric Portable Dehumidifier

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The Portable Mini Dehumidifier by Hysure could make your RV much more comfortable, eliminating excess moisture from rigs with under 150 square feet floor area.

This compact and inexpensive model can remove up to 9 ounces of water per day in ideal conditions, however, note that it only works effectively above 59 degrees F and not at all below 41 degrees F.

If your regular RVing destinations fall within this temperature range, this dehumidifier makes a good choice for your RV thanks to its low energy consumption of 2.5A. Suitable for campers as well as trailers, it weighs just 2.4 pounds and measures less than 11 inches high, making it a good space-saving model and highly portable.

This basic RV dehumidifier features an auto shut-off function. When the water tank is full, the indicator light lets you know it’s time to empty the tank and the unit also stops until the tank is replaced and empty. Rated under 37Db, this model is also very quiet, equating to a slight hum that should not disturb most users.

Made from a sturdy ABS plastic, this unit will live up to life on the road. Given its low energy consumption, quiet operation, and very low purchase price, if you are having problems with a damp travel trailer, give this budget priced dehumidifier a try.

hOmeLabs Energy Star Dehumidifier

Homelabs Energy Star Dehumidifier

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The hOmelabs Energy Star Dehumidifier features a powerful built-in pump compressor to remove a maximum of 22 pints of water from your RV’s air per day. Energy Star certified for energy efficiency, it has a rated current of 3.7 amps with an approximate maximum 520 Watt draw.

Suitable for even the very largest of RVs, it can reduce moisture levels in indoor spaces up to an impressive 1,500 square feet. However, it is best used in room temperatures between 41-90 degrees F, so it isn’t suitable if you are looking for a dehumidifier for your RV during freezing winter conditions.

This model has a 0.8 gallon water tank complete with a handle for easy removal and emptying, or you can catch a standard hose for continuous drainage. Measuring 15.2” by 10” for a height of 19.7” it is a little bulky and it weighs 30.5 pounds. However, thanks to its wheels and handles, you can easily move it around your RV.

The convenient hydrostat allows you to select your desired humidity levels between 35%-85% and to check current RH levels. The control panel consists of touch buttons that are easy to identify for a smooth operation. It also has an auto shut-off feature, a 24-hour timer, turbo mode for a rapid moisture reduction, plus a washable filter.

If you have a large class A or fifth wheel and frequently RV in very humid climates, this dehumidifier will keep your rig moisture and mildew-free.

DampRid Fragrance Free Refillable Moisture Absorber

Damprid Refillable Moisture Absorber

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If you are looking for a reliable power-free dehumidifier for your RV closets or shower room, check out this great value for money four pack by market leaders DampRid. Effective for up to 45 days for areas with a maximum of 250 square feet, you could also use them to keep your trailer or camper moisture-free year-round or when not in use.

Easy to use, simply empty the crystals into the reusable cup, replace the lid and leave the dehumidifier to work. Once the crystals have completely dissolved, empty them down your toilet, flush, and refill the cup with a new packet.

Measuring under 10” by 10” with a height of 5.32”, these 10.5 ounce cups are ideal for tucking away out of sight in your RV, where they will slowly but steadily absorb excess moisture from the air. Use all four spotted around your trailer to help keep moisture-related problems such as mildew and musty odors at bay.

This product is an excellent, economical choice for enclosed spaces that your RV dehumidifier just can’t reach such as cabinets or closets where moisture can build-up. They also make a good storage aid, helping to keep smaller trailers and campers mildew-free over storage periods, without the need for any power.

Midea Dehumidifier with Reusable Air Filter

Midea Dehumidifier with Air Filter

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Looking for a dehumidifier for your Class A? The Midea Dehumidifier is a high performance model with a low 295 Watt rating, certified Energy Star for its energy efficiency. This 1,500 square feet dehumidifier can remove up to 20 pints of water from your RV’s air per day and with its 500 square feet floor area rating, it’s suitable for even the biggest of rigs.

Measuring 15.31” long by 10.51” wide and just under 20” high, it is still fairly compact for its performance. Of course, if you have a smaller trailer, it may be a little too bulky, although thanks to its castor wheels, you can always roll it out of the way when it’s not in use. Weighing 30.86 pounds, it is a lot heavier than most others we’ve reviewed, but once again, that’s the trade-off for its high performance levels.

It comes complete with a 0.8 gallon water tank, complete with handle for easy emptying, or you can attach a standard garden hose for gravity-fed continuous drainage. It also features a reusable air filter with an alert to let you know when it needs cleaning, to ensure your dehumidifier stays in the best working condition.

The top easy to use control panel consists of several buttons and an LED hydrostat so you can see how humid your RV is and set your dehumidifier to reduce levels down to a set amount between 35-85%. There is also a 24 hour timer, a turbo mode, and auto-shutoff to help you to save energy.

All in all, whether you RV in a high humidity climate, or have a large RV that you live in full time, this dehumidifier makes an excellent choice to keep humidity levels under control, as well as being good value for money.

Compare the Best RV Dehumidifiers

Table Comparing the Top 9 RV Dehumidifiers
Image Title Price Rating Buy
OpenPro Breeze Electric Dehumidifier Compare Pro Breeze Electric Dehumidifier
$$
86
Buy on Amazon
OpenEva Dry Wireless Mini Dehumidifier Compare Eva-Dry Wireless Mini Dehumidifier
$
88
Buy on Amazon
OpenCamco Fragrance Free Miniature Dehumidifier Compare Camco Fragrance-Free Miniature Dehumidifier
$
86
Buy on Amazon
OpenIvation Powerful Thermo Electric Intelligent Dehumidifier Compare Ivation Intelligent Dehumidifier
$$$
76
Buy on Amazon
OpenIvation RV Dehumidifier Compare Ivation Thermo-Electric Dehumidifier
$$
80
Buy on Amazon
OpenHysure Electric Portable Dehumidifier Compare Hysure Portable Mini Dehumidifier
$$
86
Buy on Amazon
OpenHomelabs Energy Star Dehumidifier Compare hOmeLabs Energy Star Dehumidifier
$$$$$
94
Buy on Amazon
OpenDamprid Refillable Moisture Absorber Compare DampRid Moisture Absorber
$
92
Buy on Amazon
OpenMidea Dehumidifier with Air Filter Compare Midea Dehumidifier
$$$$$
92
Buy on Amazon

Buyer’s Guide to Buying the Best RV Dehumidifier

Find out how to choose the best dehumidifier for your RV right here in our buyer’s guide, we’ll take a closer look at all of the important features that you’ll need to consider when making your purchase.

Price

As you’d expect, dehumidifiers that cover a larger area and pull out more moisture per day cost more than less effective models. So, before you start to set your budget for your RV dehumidifier, it’s important to consider how much moisture you’ll need to remove and your RV size.

For large RVs located in high humidity areas, such as Florida, Louisiana, or Iowa, for example, you’ll need to spend significantly more on a high performance model. For small RVs, such as campers and small travel trailers, located in areas with lower humidity levels, you can spend much less and still reduce your moisture levels to prevent damage and odors.

In terms of price, you’ll have to assess your needs, then budget in for any extra features that may bump your price up. For small moisture absorbers, expect to pay around $10. If you have a small RV with a slight moisture problem, you can pick up a standard small dehumidifier for $30.

Add on extra features and you’re looking at between $50-$80, going up to around $100-$150 for RV with a large floor space or a significant moisture problem.

Energy Usage & Power Source

As always, you’ll want to keep an eye on how much energy your dehumidifier uses as well as its power source.

For storing small RVs in winter without a power supply, several moisture absorbers placed throughout your trailer can really help to prevent any moisture build up and associated odors.

For larger rigs or if you’re in a high humidity area, you’ll want to look out for a more powerful electric dehumidifier without a large power draw. Whether you frequently go off-grid or are always hooked up to shore power will affect your choice of RV dehumidifier.

Luckily, there is a great middle of the road selection that manages to combine good performance with a low electrical draw. Some compact versions draw just a couple of amps.

Alternatively, if you need high moisture removal levels, you’ll want to pick a more powerful model and stick to using it when you’re hooked up. You can always purchase an additional energy-free moisture absorber for when you’re off-grid.

Auto Settings

RV dehumidifiers with auto settings make it easy to save energy and keep your rig’s humidity levels within a preselected comfort zone. Simply switch on auto setting and your dehumidifier will switch on and off as needed to maintain your RH levels, usually at 50%. Some models allow you to adjust this level.

Without auto settings, your unit will operate on continuous mode. Whilst this can be useful for when you are visiting places with high humidity levels, generally, it’s best to opt for an auto setting to allow your dehumidifier to cycle on and off as needed, rather than having it run 24/7.

Noise Output

Dehumidifiers can be pretty noisy. Even the quiet ones can be enough to disturb RVers with sensitive hearing.

Compressor models make the most noise, so avoid these if you have over-sensitive hearing. For others, if you manage to sleep with your RV AC on, or are planning on using your dehumidifier when watching TV, showering, or cooking, the noise levels shouldn’t be that much of a problem for you.

Silent, non-electric models don’t work as effectively at drawing out moisture from the air, but you may want to consider using them in your sleeping quarters with another type of dehumidifier for your living space – if you have a large RV.

Extraction rate

The extraction rate is an important figure to bear in mind when comparing RV dehumidifiers.

Before you buy, make sure that the extraction rate is compatible with the conditions where your RV is used. High humidity areas will require a high extraction rate to reduce your RV’s relative humidity down to comfortable levels.

Another thing to bear in mind is that the extraction rates you are given are under ideal conditions, often at high temperatures with very high humidity levels in excess of 80%. In an average climate, you would not expect your dehumidifier to be exposed to these conditions each and every day, except if you RV in areas with very high humidity levels.

Portability – Size & Weight

With space at a premium inside your RV, you won’t want a bulky dehumidifier taking up precious floor space. If you need a high performance dehumidifier, opt for a model with wheels to make it easier to move out of the way when you need to.

While compact moisture absorbers will weigh next to nothing, it’s not unusual for large compressor models to weigh over 30 pounds. As with any RV equipment, make sure your model is the smallest size and lowest weight for the performance level that you need.

Features

Some RV dehumidifiers come with a range of features that may or may not be useful for your needs. Take a look at the following most common types.

Humidistat

Unless you are opting for moisture absorbers or a very basic dehumidifier for barely-there moisture issues, we recommend opting for a unit with a built-in humidistat.

Not only does this make it easy to quickly check just what level of relative humidity you’re at, it also allows you to set your desired level. This will save energy as your dehumidifier will cycle on and off to reach and then maintain that level, rather than staying on regardless.

Laundry setting

If you have to dry your dry inside your RV, you most definitely need a dehumidifier.

While a laundry setting will work well to help you to quickly dry your wet laundry, in reality, any model with a fast fan speed and a continuous setting will work exactly the same, so don’t go in for a model just because it has a so-called “laundry setting”.

In any case, all electric dehumidifiers will help your laundry to dry faster by blowing warm dry air.

Timer

A timer is a very useful feature, allowing you to set how long you’d like your dehumidifier to run for. If you’re going out for the day, for example, you can set it for several hours and save energy rather than having it run continuously. This is a good option to have if your model does not have a built-in humidistat.

Adjustable louvers

In order to dry out the air in your camper, your dehumidifier will need the moist air to pass through it before ejecting it as dry air. This can lead to quite a breeze especially if you have it running on a high-efficiency setting.

Adjustable louvers allow you to angle this airflow to avoid having your dehumidifier blow on you while you’re having lunch, or to better angle the airflow for improved drying in different parts of your RV.

Desiccant or Refrigerant

If you’re not going for simple moisture absorbers and are looking for a full-on dehumidifier for your RV, one of the most important questions you’ll need to ask yourself is should you get a desiccant or refrigerant dehumidifier for your trailer? To help you to decide, here are the main differences between the two types.

Desiccant RV humidifiers utilize an absorbent material to remove water from the air. The material is then heated to remove the water that then drips into the collection tank. As they don’t rely upon any difference in temperature to remove moisture they are suitable for use in unheated trailers. However, they also tend to have higher energy requirements than refrigerant versions.

Refrigerant dehumidifiers draw moist air in over cold coils. This causes the moisture to condense and drip into the water tank. As this type of dehumidifier needs the moist air to be warmer than its internal coils, refrigerant models are often less effective or unsuitable for use in very cold temperatures. They also tend to be much noisier than desiccant versions, but they are less expensive.

Tank Capacity

Smaller tanks will need emptying more frequently. If you are not going to be around to empty your tank on a daily basis, look out for models with a large capacity tank that equates to at least a couple of days at the maximum extraction rate.

If you are battling with high humidity levels in your RV on a permanent basis, you may want to look out for a dehumidifier that can be attached to a hose to provide you with a gravity-fed continuous drainage option.

This will allow your dehumidifier to remain in continuous operation rather than shutting down until you empty and the tank.

110 or 12 Volt Dehumidifier For Your RV

While a 12V dehumidifier sounds like a good idea for your RV, in practice, it’s best to opt for a regular 110V model, just like the rest of your appliances that run on regular AC power. 12V DC humidifiers are pretty rare, plus they also risk running down your battery.

As dehumidifiers tend to use a fair amount of electricity, if you are looking for a solution to keep moisture levels down over an unattended storage period, you would be better off using a moisture absorber non-powered variety.

Benefits of an RV Dehumidifier

Installing an RV dehumidifier has numerous benefits, including the following:

Eliminate musty odors – dehumidifiers remove moisture so you won’t get that telltale damp musty smell when you open up your RV door.

Dry soft furnishings and bedding – moist air can lead to damp soft furnishings, clothing, and bedding. Using an RV dehumidifier will keep your RV interior dry.

Feel more comfortable – reducing the moisture levels in your RV will make a big difference to how you feel, making it a more comfortable and relaxing environment.

Prevent mold formation – damp air inside your camper can quickly lead to mold growing on your ceiling and walls.

Improve your breathing – if you suffer from asthma or allergies, an RV dehumidifier can help you to breathe more comfortably, alleviating some of your symptoms.

Prevent RV deterioration – moisture buildup inside your RV can cause serious damage if left unchecked over a period of time. Installing a dehumidifier will allow your RV to fully dry out and halt any damage.

Ways to Reduce Humidity Inside an RV

If you are suffering from high humidity levels inside your RV, you’ll need to invest in a dehumidifier. Most moisture inside your RV comes from breathing, cooking, and washing all in a confined space.

Here are some extra tips on how to keep humidity levels down inside your trailer.

  • Wipe down your shower room with a towel after use. This will remove water that would otherwise end up in your RV’s air moisture levels.
  • Put your towels outside after use. Of course, if it’s raining, you’re going to struggle with this one, but if it’s nice out, make sure you remove your wet towel from your RV to dry before it joins the laundry queue.
  • The same goes for laundry. Try to hang it outside whenever possible.
  • Open your windows to encourage airflow and reduce your relative humidity level. That is unless you’ve got your dehumidifier running. Also, if humidity levels are really high out, you won’t want to encourage damp air to enter your living space.
  • When cooking, especially boiling pans of water, always make sure you run your extraction hood, use lids, or better still cook al fresco.
  • Improve air circulation in cabinets and closets. Every so often when you’ve got a nice dry day, periodically open up your cabinet doors to allow the air to renew itself and prevent moisture build up.

Final Thoughts

If your RV is uncomfortably humid inside, you need to get yourself the best RV dehumidifier. Prolonged high moisture levels create prime conditions for mites, mildew, and mold which can worsen allergies and respiratory problems. What’s more, high humidity levels have also been associated with increased concentrations of volatile organic compounds, as well as a general sense of fatigue and low energy levels.

To keep your small RV fresh on a budget, pick up a set of Damp Rid Moisture Absorbers. They don’t require any electricity and can be refilled after use to cut back on single-use plastic. Ideal for campers or trailers, if you dread that musty smell on your first trip of the season, these inexpensive moisture absorbers will help to keep your RV dry and clean smelling.

For small to medium RVs that have serious moisture problems, the Mid-Size Thermo-Electric Intelligent Dehumidifier by Ivation makes a good choice. It can remove up to 25 ounces of water from your RV air per day and comes with a built-in humidistat so you set your desired relative humidity level. Complete with a large water tank, it measures less than 14” high, so you’re sure to find a space for it in your small motorhome.

Big rigs, such as class As and fifth wheels in high humidity areas will benefit from the Midea Dehumidifier with Reusable Air Filter. This high-performance RV dehumidifier can remove up to an impressive 20 pints of water from your RV air per day. It also benefits from an LED hydrostat allowing you to select your desired humidity levels between 35% to 85%, plus a turbo mode, and auto shut-off.

About Karan Riley

I am the owner and main contributor to RV4Campers. I first got bit by the RVing bug when I joined a friend who was into Van Life for weekend getaways. It became apparent very quickly that this was a style of life I enjoyed and wanted more of, so it wasn't long before I had my own travel trailer. I didn't have a lot of money to throw around back then so I did lots of research into all the gear and gadgets. And this is how my RV passion exploded, I've now spent countless hours playing around with many different bits of kit and reading user manuals. And it's this wealth of knowledge I bring to RV4Campers.