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Climate Control: The 5 Best Dehumidifiers for Your RV

When stocking up on camping supplies, you’re usually hunting through the aisles for marshmallows and chocolate…not dehumidifiers. But you’d be surprised how high up on the list this device should be for RV campers!

But with so many dehumidifiers out there to choose from, how do you know which are the best…and, more importantly, which are best suited to RV life?

Here are our picks for the best dehumidifier for an RV that you can buy!

A small dehumidifier with an LCD display panel. Best dehumidifier for an RV.

Our Top Picks

Best Overall
NineSky Dehumidifier

Best Runner-Up
Pro Breeze Dehumidifier

Luxury Option
hOme Labs Dehumidifier

Best for Class A RVs
Simsen Dehumidifier

Best for Small RVs
TABYIK Dehumidifier


Best Overall

NineSky Dehumidifier

NineSky Dehumidifier for Home, 85 OZ Water Tank, (800 sq.ft) Dehumidifiers for Bathroom Bedroom with Auto Shut Off,7 Colors LED Light(Gray)

The best RV dehumidifier on the market is easily the NineSky dehumidifier!

When you’re searching for an RV dehumidifier, there are a few factors to take into consideration: reservoir size, area of effect, and overall size being three of them. The NineSky checks all the boxes!

Your average RV will be about 240 square feet. Different dehumidifiers cover different square footage, so it’s important to check how much space your dehumidifier will actually dehumidify!

Some dehumidifiers are only made for the space of one room, which means they won’t be able to pull the excess moisture from your full RV.

Luckily, the NineSky has a reach of 800 square feet, so it more than covers your average RV!

On top of that, the NineSky has a considerably larger reservoir than most RV dehumidifiers. It can take in 85 ounces of water without breaking a sweat. (Or, in this case, while making sure your RV doesn’t break a sweat!)

85 ounces is roughly 2/3 of a gallon. That’s a lot of water it can pull out of the air before it has to be emptied!

As for overall size, while the NineSky has a sizable range and reservoir, the unit itself is fairly compact. At its largest dimension—its height—it only reaches about 15 inches.

There are a few extra features that aren’t fully necessary, but make it a bit more fun. For instance, the NineSky has lights included. You can choose between seven different colors to best suit your RV’s aesthetic! (Or, if your kids have a favorite color amongst the seven, you can let them play with the controls!)

The device is designed to run quietly, so it won’t be an eyesore or an earsore in your RV! At worst, it will provide a gentle hum of white noise in the background.

The NineSky has two modes: high speed mode and night mode. Night mode is slower and softer than high speed mode, which makes it even quieter at night when you’re trying to sleep. It keeps the humidity at bay all night long!

This RV dehumidifier also comes equipped with an automatic shut-off feature, meaning it will turn off all on its own once the tank fills to its maximum capacity. It will also shut off if it is jostled into a position that isn’t ideal for operation.

Pros:

  • Covers 800 square feet
  • Portable size
  • Larger than average reservoir
  • Multiple color lights
  • Two modes
  • Auto shut-off

Cons:

  • None!

Runner Up

Pro Breeze Dehumidifier

Pro Breeze Electric Mini Dehumidifier, 2200 Cubic Feet (250 sq ft), Compact and Portable for High Humidity in Home, Kitchen, Bedroom, Basement, Caravan, Office, Garage

While the Pro Breeze is just as well-suited to dehumidifying your RV as the NineSky, there are a few differences that bumped it one rung lower on the list of best RV dehumidifiers.

Firstly, the area of effect is considerably smaller, only 250 square feet. While this is still big enough for most RVs, there are some that are larger, which means it won’t necessarily work across the board.

Or rather, it will work, but its effectiveness will be reduced.

Secondly, the reservoir is considerably smaller. The Pro Breeze’s reservoir only holds about 50 ounces of water before it needs to be emptied out, which means you’ll have to do this chore much more frequently.

One positive difference? This RV dehumidifier is smaller than the NineSky! It’s only a foot tall, which means you can definitely tuck it away in a corner. It’s easy to keep it out of sight of your guests…and out of the way of your feet!

Another thing the Pro Breeze has that the NineSky does not: a handle! Instead of having to scoop it up and carry it from the bottom, you can grab the hidden handle and carry it around much more easily.

This RV dehumidifier, unfortunately, does lack the fun lighting feature. However, this doesn’t affect its functionality in any way. It’s just a bit less flashy!

The Pro Breeze is also designed to run as quietly as possible to avoid disturbing those in the RV.

Pros:

  • Smaller size
  • Handle included
  • Runs quietly

Cons:

  • Smaller reservoir
  • Smaller area of effect
  • No lighting feature

Best Luxury Option

hOme Labs Dehumidifier

hOmeLabs 1500 Sq. Ft. Energy Star Dehumidifier 22 Pint Size - Ideal for Home Bedrooms, Bathrooms and Medium Size Rooms - Powerful Moisture Removal and Humidity Control - 22 Pint (Previously 30 Pint)

If you’re looking to add a fancy touch to your RV, the hOme Labs Dehumidifier should jump straight to the top of your list.

This RV dehumidifier is sleek and high-tech, outfitted with several features its predecessors on the list just don’t have.

One such feature is its efficiency. While the tank’s capacity stops at just over 100 ounces, if you empty it throughout the day, it can remove far more. It can actually remove over 350 ounces of water from the air over the span of a single day!

The hOme Labs dehumidifier also has an auto shut-off mode, two speeds, and a fairly compact size. However, it is the biggest RV dehumidifier on our list. It sits at nearly 20 inches in height, which makes it slightly more difficult to hide from plain sight.

One more thing the hOme Labs model has over its predecessors? A far larger area of effect. The hOme Labs model can drain enough humidity from the air to cover a space of 1,500 square feet!

Not only can you use this model in your RV with absolute certainty it will cover your entire space effectively, but when camping season is over, you can use it at home!

This RV dehumidifier also comes with an extra special feature. If you don’t want to deal with the hassle of emptying the tank out over and over again, you can attach a hose to the unit to allow the water to drain consistently.

The unit doesn’t come with a hose, but you can purchase one to attach!

Pros

  • Option to attach a drainage hose
  • Large area of effect
  • Efficient

Cons

  • Larger size
  • Requires more frequent drainage

Best for Class A RVs

Simsen Dehumidifier

SIMSEN 95oz 7000 Cubic Feet(720 sq ft) Quiet Dehumidifier for Home with Drain Hose and 2 Working Modes, Portable Small Dehumidifiers for Bedroom Bathroom Basements Closet RV

Class A RVs differ from your usual RV in a few ways. Firstly, they’re not pulled by a car or truck—they’re the “motorhome” type of RV, so they’re able to be driven independently!

Secondly, Class A RVs are larger than your average RV. This means that some of the smaller dehumidifiers may not adequately keep the entire space from becoming overly humid.

That’s where the Simsen dehumidifier comes in!

The Simsen model is only slightly bigger than the Pro Breeze at 13 inches tall. However, its area of effect spans further; it’s well-suited to run in a space up to 720 square feet.

This means it’s more than able to cover the span of a Class A.

This model of dehumidifier also has the option to have a hose attached for draining the reservoir. This drainage hose comes with the dehumidifier.

More good news—remember those fun colored lights in the NineSky? The Simsen also has the option to switch the color of the reservoir light!

The reservoir itself can contain up to 95 ounces of water; however, the dehumidifier can only drain 34 ounces over the course of a day.

Pros

  • Compact with large area of effect
  • Colored lights
  • Included drainage hose

Cons

  • Only drains 34 ounces of water per day at most

Best for Smaller RVs

TABYIK Dehumidifier

Dehumidifier,TABYIK 35 OZ Small Dehumidifiers for Room for Home, Quiet with Auto Shut Off, Dehumidifiers for Bedroom (280 sq. ft), Bathroom, RV, Closet

Last but not least, if you have an RV with very tight quarters, you’re going to need a dehumidifier that can fit into the smallest bit of available space. That’s the TABYIK Dehumidifier!

This dehumidifier is the smallest on our list; at only 10 inches tall, this itty-bitty unit can slide into any corner you need it to. And best of all, its tiny size doesn’t mean it isn’t effective!

Though the reservoir only holds about 35 ounces, its area of effect expands to about 280 square feet, which means it will still manage to dehumidify most RVs just fine.

As you can see, you’re getting a compact unit, but trading that for a smaller reservoir than usual.

Still, as long as you empty it when needed, it should do the job just fine!

Pros

  • Convenient size
  • Sufficient area of effect

Cons

  • Smaller reservoir

RV Dehumidifier FAQs

View of an RV with water on the rear window.
A dehumidifier keeps RV moisture problems under control.

Why get a dehumidifier for my RV?

The short answer? The inside of RVs pick up mold very, very, very easily.

There are many reasons why. For one, RVs tend to spend a lot of time in storage, which means they end up sitting in stagnant air. It also means little attention is being paid to the upkeep of the RV.

Though further down on the totem pole, another reason RVs tend to get overly damp is that they take on more water in a smaller space.

Between leaks, humidity seeping in from the outdoors, and often having to weather heavy rain, RVs take on a lot of moisture…and because they’re so confined, it’s easy for that moisture to gather where you don’t want it.

Spring and summer are more humid seasons, and they’re also the seasons when RVs are most often taken out; fall and winter are drier, but these are the months when RVs are closed up in storage. Overall, it’s not an ideal situation to tackle without an RV dehumidifier to dry things up a bit.

Besides, the last thing you want is to be camping in a mold-infested RV. RVs have all kinds of nooks and crannies that make them difficult to clean completely. If you end up with mold sneaking in, it’s going to be a huge undertaking to get it out.

How often do I need to clean my RV dehumidifier?

It depends on the RV dehumidifier’s reservoir size—and how quickly it fills up. It’s best to clean it either when the reservoir reaches its capacity or after about three or four weeks. Whichever comes first.

If you don’t clean your dehumidifier regularly, it can actually result in the device you’ve purchased to avoid mold…growing mold itself. But trust us, it’s a much smaller task to maintain your RV dehumidifier than to deal with mold in your RV!

Do I need to replace my RV dehumidifier eventually?

You can expect your RV dehumidifier to last up to a decade, provided there are no incidents and you commit to its upkeep.

However, keep an eye on the reservoir and how quickly it fills up. If its expediency reduces significantly over time and the usual upkeep doesn’t do the trick, it may be time to swap it out.


Don’t Let the Mold Set In!

Woman pressing power button on a dehumidifier panel.

Mold in your RV is not a simple maintenance task to tackle. While an RV dehumidifier isn’t at the top of the list for most campers, it should be! It will save you an incredible amount of frustration and work down the road.

To learn more about RV maintenance, the best products you can outfit your RV with, and general tips for RV camping, visit our RV section now!