Best RV Dehumidifier

If you’re an RV owner like me or are looking into purchasing an RV, there will come a time when you need to manage the humidity in your motorhome. I made the mistake of postponing seeking a dehumidifier as I thought it would not be necessary, but I was wrong. When I finally caved and purchased one, I noticed an immediate difference in my living space.

Did you know that a dehumidifier increases the longevity of a motorhome? RV camping or living results in a lot of moisture inside your motorhome. This moisture can be damaging to your rig. After a year of using a dehumidifier, I found that the device managed moisture levels in my motorhome. I also noticed that it prevented mold and rot from occurring.

To help you decide on the best RV dehumidifier for your motorhome, we have compiled a guide. This guide has five of the best motorhome dehumidifiers. We have also listed their features and the positives and negatives associated with them.

Table of Contents

 Our Top 5 Picks

Editor's Choice

Best Compact

Best Quietest

Easiest To Use

Value for Money

Best RV Dehumidifier Of 2021





The Homelabs Energy Star dehumidifier is my best overall pick for several reasons. If you have a large motorhome like me, then this dehumidifier could work well for you. The Homelabs Energy Star can remove up to 50 pints of moisture from the air within your motorhome each day.

But, this will depend on your motorhome size. If it is within the 4200 square foot range, you should have no issue using this device. If you are participating in full-time RV living or are often traveling in humid weather as I do, then this modern, sleek dehumidifier could be ideal.

One of this model’s best features is the adjustable moisture level that allows you to set it and leave it. You won’t need to worry about unnecessarily monitoring the device as it will switch off when the water tank is full. If you don’t want to drain the dehumidifier often, you can attach a hose and situate it somewhere the hose can drain it.

Additionally, this dehumidifier not only eliminates moisture but also reduces odors. It does this with its built-in compressor fan feature. Living or camping in a motorhome can create a stuffy environment with many scents. That’s why this feature is convenient.

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First id like to point out a few things wrong about other reviews.

The radiator/condenser fin damage seen in one of my photo’s is a perfectly normal occurrence during assembly. If it bothers you or is so bad it affects the machine, or even if you do it yourself by accident, there is a simple fix. Get a condenser comb.

I know they are available at Lowe’s and Autozone, but they are also available on Amazon and a few other stores near you most likely. Check home improvement stores or auto parts stores for it. The comb’s are easy to use and figure out how to use.

Id also like to point out that a running condenser is not silent. On any appliance. If you run this device (if it isnt defective) next to a refridgerator, the fridge condenser will be louder. My mini-fridge is about the same volume when its condenser runs. If you can hear it from several rooms away, you have a defective unit probably, and an exchange is what you need. h0meLabs has excellent customer service.

I left it out of the box, upright and unplugged for 24 Hours as the box says (the oils in the condenser may have shifted during transport, or may have even been laid on its side, which is why it must be upright for so long).

I put a drain hose (Lowe’s sells 6 ft female/female leader hoses for $8). If you are using continuous, unless you want to constantly have to lug a bucket to a bathtub or outside or whatever, its going to be heavy when full, hence the drain hose. I cut the 6 ft hose down to about 1 foot give or take an inch.

The hose leads into a “Little Giant 554425 VCMA-20ULS Condensate Removal 1/30 HP Pump with Safety Switch”, which is connected to a Vinyl tube that leads into my bathroom.

The pump is like $50 and a wise investment. Its optional, but you can wire the secondary safety switch to a water alarm (ive seen them in the sink/shower aisle at walmart) which will sound if the pump safety feature kicks in, warning you to remove the hose so that it goes into the bucket, or else you will have a wet floor.

I also have it more than 8 inches from a wall on all sides, even though it only requires 8. Im guessing because the humidity reading might be off if it is in a corner.

Alot of people are saying the house thing is flimsy, but it really isnt as long as you arent a brute with it. Other people have said that it doesnt drain out the hose and that it keeps filling the bucket. Well, I used a level to make sure my floor was flat.

If you have it on carpet, but a piece of plywood or something flat and sturdy (not cardboard) and make sure its as level as possible. If it isn’t level, the float that makes it go into the hose will not function correctly and you will have a full bucket eventually.

Below is my actual review based on usage. I will update it at certain milestones to tell about whether or not it is still chugging along as efficient as it was out of the box.

First Hour: The first hour i continuously checked the bucket (turning it off first) in order to see if it was definitely going into the hose, and i remove the hose to see if it was wet (it was), so it was definitely collecting moisture. In the first hour alone it brought my house down from 86, to about 45-50.

First Day: I already know it is better than my old DH (Hisense brand) because the old one was lying on the display. I was about to unplug the old one to plug in the new one and the humidity was allegedly 32. When i plugged the new one in, it went from 50 all the way to near 90 really darn quick. Then it slowly decreased down to 33, which took about 3 hours.

First Week: I have definitely noticed a difference between my 2 dehumidifiers and this one is definitely better than my old one. Using the continuous function and a drain hose into a condensate pump, this machine has been running nonstop since I first plugged it in, and the bucket is as dry as it was when I first opened the box.

To all those that are saying this function doesnt work and its not going into the hose, double check to make sure that the dehumidifier is as level as possible, and the drain hose is going horizontal and at a downward angle. If there is any “Up” angle in the hose, the water wont drain properly. It uses gravity, so the only directions it can go is down or horizontal.





For those who have a smaller motorhome or only wish to dehumidify a smaller area within your RV, having a more compact dehumidifier might be better.

I have used compact dehumidifiers before, but perhaps none have been as efficient at removing moisture from a small space as the Pro Breeze. This device is incredibly lightweight at under 3 pounds and can remove up to 9 ounces of water each day.

Additionally, the device out of sight won’t be an issue as it is only 11 inches tall and 7 inches wide, and 6 inches deep. Many have used this device in their motorhome bathrooms and bedrooms. Its compact size and low moisture removal abilities make it ideal for places smaller than 1200 cubic feet.

Another convenient feature that the Pro Breeze mini dehumidifier processes is an auto shut-off feature that alerts users when the tank is full through an LED light.

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This is a review on two parts. The first part concerns why I bought this item. This product had lots of reviews. That means to me that you get a good sampling and paid reviewer’s comments are diluted. I liked that the description explained what to expect from this device in performance.

The wattage was 20 Watts, important in an RV. I would like to have seen a noise level listed. I was unsure of the physical unit’s size. I see one set of measurements but I think that’s of the box and not the unit. Clear that up and this review has all the information you need.

Coming up, review of the unit. My RV is 76F and 50-70% humidity without the unit. The 70% humidity came when I was steaming veggies on the stove.

Here’s the second part of the review. I’ve had the unit for a week. The unit is very quiet. In a quiet room I can’t hear it 2 feet away. Up closer you can hear air rushing through the vents.

The dimensions of the unit are 4 3/8 inches at it’s deepest point, 8 1/2 inches tall, and 5 1/2 inches at it’s widest point. The unit is curved and not rectangular.

The intake is in the front, the exhaust on top.

Does it work? Yes, it does but maybe not as you might expect. This unit can only extract water from the air if the temperature of the internal cooling plate is lower than the dew point. The bigger the difference the more water collected. If your room is cold, you’ll collect less water. There’s also less water in colder air.

One thing to be aware of is air leaks in your room. If fresh water laden air is continually introduced, you won’t notice a difference. In our RV, I ran a vent fan that sucked fresh humid air from the outside. This machine could not keep up because we weren’t recirculating the drier air, it went outside. For best results, keep your room sealed from outside air. I’m satisfied, the unit collects water and that’s water not in my air.

My unscientific experiment involves steaming veggies and boiling pasta on the stove. On completely different days, I anecdotally note the humidity in the RV stayed near 50% with the unit and near 70% without the unit.

I’m going to the beach soon, I’ll see if I stay comfortable.





When you’re out camping in the outdoors with your motorhome, you want to hear the peaceful sounds of nature. You don’t want a noisy dehumidifier.

The Hysure portable mini dehumidifier is one of the quietest models on the market. It has a whisper-quiet rating of below 33dbs. To put that into perspective, falling leaves register at 20dbs. A library room has a noise rating of approximately 30 to 40 dbs.

Capacity-wise, this model has high humidity removal capabilities for such a small device. It can remove over 8 ounces of moisture from the air each day; yet, it only functions correctly in areas no bigger than 150 square meters. I am an avid RV enthusiast who cares for the environment.

As such, I am wary of a few dehumidifier brands that are not environmentally friendly. Fortunately, this Hysure portable mini dehumidifier is eco-friendly. It also has no chemical substances and is built to be energy efficient.

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When I saw the price tag & the description, I actually second-guessed my decision to purchase this dehumidifier versus investing in a more expensive one, but given I live in a relatively small apartment, I decided to go for it under the presumption that I’d return it if worse came to worst.

I’ve been so pleased with how well this dehumidifier works! I love that I can “see” it working in that I see the water filling, but that I don’t hear any noise in the process. It’s as easy to use & lightweight as it claims, and I’ll keep it on for days (without a spike in my power bills as of yet).

Recently, I accidentally kept it too close to one of my plants, and the plant literally dried up…. I had no clue that was possible/I’m not sure I can entirely blame the dehumidifier, but if I can, talk about an effective product!!

My apartment is about 1700 square feet and it’s been perfect for me; I do alter it between my bedroom and kitchen/den/living room area. Overall, very pleased, especially considering the price.

Easiest To Use – Keystone Dehumidifier




During the time I’ve spent traveling with my RV, I often visit remote places. When I’m in these places, I don’t want to have devices with difficult-to-use features. Let’s face it, some humidifiers are downright confusing.

The Keystone dehumidifier is one of the easiest-to-use modern machines on the market. This dehumidifier is efficient and can remove up to 35 pints of moisture per day.

Yet, you should note that this device only functions well in areas of 3000 square feet or less. Many features make the Keystone dehumidifier easy to use. These features include the 24-hour timer and modern LED touchscreen interface. Additionally, the continuous draining option is also convenient.

If you find yourself camping in humid weather conditions as I sometimes do, then the constant draining option is handy. This feature enables the device to keep draining as it collects moisture. Many RVers have mentioned that this device is reliable and convenient.

This is because it has a range of settings, unlike some of the smaller models on the market. You can set the dehumidifier to auto defrost, turbo, and normal. Additionally, the Keystone dehumidifier is also easy to empty and clean. The dust filter can be quickly taken out and cleaned, and the water tank has a carry handle for easy emptying.

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I found many positive detailed reviews on this unit, and they were fairly accurate. This beautifully designed, well-built dehumidifier (the first one I ever bought) seems to work great. Its display gives an accurate reading of the ambient humidity and its simple keypad allows for several modes of operation and adjustment. It’s also quiet, which I love.

The only problem with the Keystone is the instructions, which are inadequate, badly translated and confusing. I’ll help you out with a supplement:

FOR CONTINUOUS DRAINING: The clear Drain Hose comes already connected to the Drain Hose Adapter. As you push the clear Drain Hose onto the Drain Tube (which they’re calling the “Connector” on Page 8), make certain the two small slots in the Drain Hose Adapter stay aligned with the two holes next to the Drain Hose Outlet on the back panel. If they’re not aligned, you’ll have to twist the Drain Hose to install the screws, which really isn’t ideal.

BY THE WAY: If you install the screws first, as I did on my first attempt (the instructions aren’t clear), you might end up twisting the Drain Hose accidentally and not be aware of it. Install the screws last.

DRAIN HOSE ADAPTER SCREWS: There probably won’t be any screws in the bucket, as they claim on Page 8, so you’ll have to scrounge up two small round head screws. I suggest stainless steel.

WATER BUCKET: The bucket actually snaps firmly into place, unlike on some other dehumidifiers. The snapping isn’t readily obvious and to me it seemed like the bucket just wouldn’t go in. You have to push firmly on both sides simultaneously.

UPDATE: I’ve run the Keystone for well over a month, nearly every day. It’s worked perfectly, no complaints, and for as hard as the fan blows, it continues to surprise me how quiet it is. I’m a light sleeper and I can sleep with this running next to my bed.

Best Value for Money – Eva Dry Mini Dehumidifier




Not everyone has an extensive budget when it comes time to outfit your motorhome with a dehumidifier. Suppose you are looking for the most affordable dehumidifier that is still value for money.

If this is the case, you might want to consider the Eva Dry mini dehumidifier. This device is reasonably priced and doesn’t need batteries or a power source to operate. Unlike other dehumidifier models on the market, the Eva Dry mini device is wholly renewable and spill-free. You won’t even need to empty a moisture collecting tank.

If I had known about this dehumidifier sooner, I likely would have opted to use it. I would have used it for small spaces inside my motorhome like my pantry, bathroom, and wardrobes. With its lightweight design and petite size, the Eva Dry device is easy to use, and you can use it in areas up to 333 cubic feet.

Instead of absorbing the moisture into a holding tank, this dehumidifier collects between 4 to 6 ounces of water into non-toxic silica beads. These beads are child and pet-friendly. This means that this device is also conveniently environment- friendly.

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I use this little dehumidifier in my tiny bathroom. Even though I have a fan in the bathroom it still would get mildew spots from the steam. I’ve had this in the bathroom for a couple months now and I haven’t noticed any new mildew spots. I have to plug it in every week or two since there is so much moisture in the bathroom, but that is a very easy process. I love the size and ease of use!

RV Dehumidifier FAQs

Should I run a dehumidifier in my RV?
Ultimately the answer is yes; you do need to run a dehumidifier in your RV. Dehumidifiers combat moisture in the air and help to keep an RV interior breathable and dry. Without a dehumidifier, areas in your RV will start to develop mold and cause damage to your health and the condition and longevity of your RV.
What is a good humidity level for an RV?
The optimal humidity levels within a motorhome are between 30 and 50 percent. If you are utilizing an RV dehumidifier, you will easily ensure your humidity levels stay within this range. If you don’t use a dehumidifier, your humidity levels will remain uncontrolled. You will also likely start to experience problems such as mold, bacteria, and decreased breathability. Some will even experience dehydration.
Will a dehumidifier stop damp?

Identifying if a dehumidifier can stop damp will depend on the type of dehumidifier you have. Additionally, it will also depend on if the device you have can combat the area’s size where you want to reduce moisture. In most instances, dehumidifiers will keep condensation to a minimum on windows. This will prevent dampness from occurring in your RV. Luckily, many different dehumidifiers cater to a range of varying motorhome size requirements.

Recommended Homelabs Energy Star dehumidifier | Final Words

To conclude, in my humble opinion, the Homelabs Energy Star dehumidifier is the best overall dehumidifier. This device can remove the highest moisture concentration of up to 50 pints. It also eliminates most odors and is effortless to use. Additionally, the Homelabs Energy Star humidifier has many features the other devices have. These include being uber quiet, having many modern features, and being compact and easy to maneuver.

Yet, one of the advanced features that make this device stand out is the one recommended setting. This setting adjusts according to the room’s moisture needs. This ensures year-round comfort. Moreover, perhaps its most impressive feature is that it can serve an area of up to 4200 square feet. This makes it ideal for most motorhome sizes.

In essence, the Homelabs Energy Star dehumidifier does what it’s supposed to do. It removes moisture, prevents dampness and mold. Additionally, it also improves breathability and keeps a motorhome cool. It also helps users stay healthy. It’s clear to see why it could be a convenient and handy item for RV owners.