Top 5 Best RV Dehumidifier (2022 Reviews Updated)

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Experienced travelers know their RV serves as a home away from home, which is why they take care of it as they would a house.

Unfortunately, an RV or travel trailer has limited ventilation, so activities such as bathing, cooking, and doing the laundry cause moisture in the room to soar, and the air quality to plummet. This results in increased moisture in the stale air of your RV, making the damp air an ideal breeding ground for mold, mildew, and all sorts of bacteria.

Best RV Dehumidifier

If you often travel with your family in your RV, you owe it to them to keep your RV clean, dry and free of these pests. One of the best ways to prevent these infestations is by purchasing an RV dehumidifier for humidity control. Unfortunately, with the multitude of products out there, deciding on a dehumidifier for your RV or motorhome can become a chore.

Don’t worry—we have you covered! Take some time to check out our RV dehumidifier reviews to find the best RV dehumidifiers along with a comprehensive buying guide to help you find the perfect model for your needs.

PRODUCT	Details	Price
#1 - Honeywell TP70WK (Editor's Choice)	Dimensions: 12.4 x 15.8 x 25.4 inches Size: 70 Pints Coverage: Up to 4000 Sq. Ft. Capacity: 14 Pints	$$
#2 - Hysure Quiet and Portable	Dimensions: 16 x 10.2 x 7.2 inches Size: 2000ML Coverage: up to 150 sq ft. Capacity: up to 750ml/day	$
#3 - Eva-dry E-333	Dimensions: 9 x 8.25 x 2.88″ Coverage: up to 333 cubic feet. Capacity: 4 oz. – 6 oz.	$$
#4 -hOmeLabs FBA_HME020018N	Dimensions: 6.5 x 5.3 x 8.5″ Size: 16 fl. oz Coverage: up to 150 sq ft Capacity:500ml	$$
#5 -Vremi 70 Pint Portable	Dimensions: 7.2 x 6.2 x 11″ Size: 50 Pint Coverage: up to 4500 sq ft Capacity: up to 50 pints	$$

The Best RV Dehumidifier

1. Honeywell TP70WK

First up in our reviews today, the TP70WK Humidifier unit from a brand renowned for its top-quality products and design. Control the humidity in medium to large rooms up to 4,000 sq feet.

the TP70WK features Energy Star certification, which means that this dehumidifier is not only powerful, but it also uses less electricity than a conventional dehumidifier, saving you more money in the long run and using less energy. Taking the eco-friendliness a step further, the TP70WK also has a durable and easily washable filter that will age with the dehumidifier.

The best thing about buying a product from a renowned brand is that you have peace of mind in case something goes wrong with your device. In this event, you can call the Honeywell Comfort customer service hotline to help you with maintenance. When you purchase a Honeywell product, quality is guaranteed.

The Smart Digital Humidistat control on this energy efficient device automatically activates the appliance based on your preferred pre-set humidity levels. An additional feature is the 24-hour energy-saving timer, a sleep mode, low-temperature operation, auto-defrost, and auto-restart function after a power outage. These make the TP70WK one of the best dehumidifiers for mold out there. It also features a drainage outlet and a hose included, something that most companies don’t include in their package, saving you the time and trouble of having to go out and purchase one.

This is the most expensive unit on our list, but it's well worth the cost. You're investing in a well-made, long-lasting product, by a well-respected, long-standing brand. If that isn’t enough to convince you, Honeywell also has great reviews on the extended warranty of their products.

Pros

Unit features Energy Star certification
Drainage outlet and hose included
Features program designed to provide timer, sleep-mode, and auto-restart functions
Extended warranty
Quiet sleep Mode
Well-known brand with many years of great reviews
Removable water reservoir
Electronic controls
Set your preferred humidity levels
Auto-restart function after power-outage
24-hour energy-saving timer feature
Durable and washable filter
Ideal for large capacity spaces up to 4,000 sq ft

Cons

May be too expensive for some
The water tank on this unit is flimsy– it’s best to use a hose for continuous drainage

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2. Hysure Quiet and Portable Dehumidifier

The next entry on our list is the Hysure Quiet and Portable Dehumidifier unit. This incredibly efficient machine can remove up to 750 ml of moisture each day and has a large removable water tank that stores up to 2000 ml of water.

The Hysure dehumidifier unit protects your home from mold and mildew for up to three days without needing to drain the water tank. After that, the auto shut-off feature ensures that you won’t come home to a mess, saving you potential clean up time, as it will automatically power down and the LED will light up to let you know that the tank needs draining.

This dehumidifier unit features Peltier technology, a form of thermoelectric cooling, this dehumidifier unit has no compressor, making it lightweight and allowing it to operate quietly. Since it produces noise less than 33dB, you can barely hear this machine operate in the background while it reduces the humidity level in your apartment.

One standout feature of this Hysure product is that it is energy-saving. It does not use any chemical substances, and it consumes little energy as it filters the air. If you place a great deal of emphasis on eco-friendly solutions, this is a great dehumidifier for your recreational vehicle. Not only does its efficiency help the environment, but it also reduces the burden on your pocket as well.

Pros

High capacity unit of 750 ml per day
Features a large easily removable water tank of 2000 ml
Portable and easy to transport
Automatic shut off feature
This product quietly operates in the background
Energy efficient power and eco-friendly

Cons

Not the best unit for very humid conditions

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3. Eva-Dry E-333 Renewable Mini-Dehumidifier

You can cut down on excess moisture without increasing your carbon footprint with the Eva-Dry E33. This unit features renewable silica gel beads. The beads capture airborne liquid for up to eight weeks, and when it’s full, you can simply plug the unit in a ventilated area to recharge the beads.

This device is entirely silent because of its renewable gel technology, unlike other units that require batteries or electricity. In terms of the size, the E-333 gives you the advantage of fitting into little spaces that other types of dehumidifiers can’t. In terms of ease of use, it is extremely easy to operate because it doesn’t require batteries or electricity. There isn’t even a water tank to empty on these units.

This wireless and tiny dehumidifier unit is the size of a car radio, making it very portable. This unit works through the process of absorption. The gel inside the unit absorbs and attracts moisture through the unit’s plastic front grill. The gel changes color from blue to pink when saturated. You can plug the unit to “recharge” it, and the heat from the electrical unit dries out the gel so that you can use it again.

The portable unit has a moisture removal capacity of 4 to 6 ounces. According to the manufacturer, the E-333 will reach its capacity after 2-4 weeks of use, depending on the conditions of the space the unit is dehumidifying. It reaches its capacity more quickly in more humid and warmer conditions.

The design of this device works best for humidity control in mild humidity conditions in small spaces—like a gun safe. At approximately $20, the E-333 is a very inexpensive solution to mild humidity problems.

Pros:

Compact unit, good for small, enclosed spaces
Optional battery-operated feature.
For rooms up to 333 sq feet
Features gel beads good for up to 10 years
The least expensive on our list
Features a five-year warranty

Cons:

Low capacity and performance
Not for rooms cooler than 40 degrees fahrenheit
Takes up to 12 hours for recharge

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4. hOmeLabs Compact Dehumidifier

Among all the different compact dehumidifiers in the market, we chose the one from hOmeLabs as our favorite. Not only is it a trusted brand, but we think it is the perfect mini dehumidifier for an RV or recreational vehicle to keep the humidity level low and prevent mold, mildew, and allergens on those long road trips.

This hOmeLabs dehumidifier is perfect for the RV, with its small build and ability to extract 250 ml of moisture in a day. The 500-ml tank of this mini dehumidifier means that it can take a couple of days to fill up depending on the conditions within your RV. Its removable tank allows for easy disposal of water by the side of the road or in the sink.

This model removes excess moisture from rooms up to 150 sq feet, perfect for the size of your RV. It’s so small that, if you’re not traveling, you can transfer it to your house to continue to enjoy the benefits of this dehumidifier.

It’s incredibly easy to maintain. There is an indicator light to alert you when the tank is full. To ensure that it is working at peak efficiency, you should clean the dehumidifier weekly. However, it isn’t too much of a chore, as you merely need to wipe down the surface to remove any accumulated dust and use a soft-bristled toothbrush to remove any dirt on the intake area.

Pros:

Auto shut off function
Electronic controls
Features indicator light to inform you when tank full
Dehumidifies up to 150 sq ft
Large capacity tank allows up to two days’ operation without draining
110V power supply with two flat pin plugs (9V/2.5A)
Peltier technology allows quiet operation
Compact designed making it easy to move from the RV to different rooms of the house

Cons:

Works slowly
Not for environments with increasing an humidity level

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5. Vremi 70 Pint Portable Dehumidifier

The last of our reviews comes from Vremi, an appliance manufacturer that has mainly produced kitchen appliances through the years but recently expanded to all manner of home appliances, including a dehumidifier. While the company has a fairly short history of manufacturing air-conditioning appliances, you can’t knock the quality and affordability of their 70-pint dehumidifier.

If you are environmentally-conscious or want to save a couple of dollars each month on your electricity bill, the first thing that will draw your attention to the Vremi Dehumidifier is that it is Energy Star certified, meaning it reduces the humidity in your home with minimal power consumption.

Vremi designed the Moisture Maniac Dehumidifier with the convenience of the end-user in mind. It sports a sleek and clean look with convenient built-in wheels and handles to ensure that you can move it around the house as needed. Also, this dehumidifier large capacity unit is able to dehumidify any room up to 4,500 square feet. It's also is incredibly quiet, ensuring that you will not hear it operating in the background as it reduces moisture, odors, and allergens in the air.

It doesn’t take a rocket scientist to figure out how to run this machine, as you can easily set the ideal humidity level for your home and then let it run in continuous 24-hour cycles until the tank is full. You can either drain it yourself or attach a drain hose to an available outlet for continuous operation.

Pros

Energy Star certified
Works effectively in rooms up to 4,500 square feet
Eco and pocket-friendly
Features a well designed, sleek and modern look
Easy to operate
Can set preferred humidity level
Drain hose slot for continuous operation

Cons

Comes from a brand that is more known for kitchen appliances
Will take up more time having to frequently empty such a small tank

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Things to Consider When Buying an RV Dehumidifier

You may think that selecting the best dehumidifier for RV is the same as purchasing one for a small room. However, there are several unique considerations for an RV dehumidifier.

Portability and Size

Size is likely your primary consideration when purchasing an RV dehumidifier, due to the limited space in the vehicle and the amount of traveling you'll be doing. The good news is that even if you bought the most luxurious RV in the market, a tabletop or compact dehumidifier is the most you’ll ever need.

Capacity and Area

The second consideration is capacity or the amount of water your dehumidifier can remove from the air per day, per square feet. Capacity usually goes hand in hand with the area of the space you need to dehumidify. Purchasing a high-capacity dehumidifier for a small space is usually overkill, and even the most luxurious RVs rarely exceed 45 feet. This means that purchasing a dehumidifier with a capacity of 30 pints or more is way too much for an RV. We suggest you purchase a compact dehumidifier instead.

Energy Usage

While you’re on the road, your RV’s appliances run on a generator and thus use the gas in the tank, so efficient use of energy crucial. Purchasing a dehumidifier that does the job with minimal power consumption is important to ensure you enjoy its benefits even while traveling.

Noise Level

Finally, you’ll want to take into account the noise level of the dehumidifier you’ll be purchasing. Look for a model with Peltier technology or thermoelectric cooling. These usually mean whisper-quiet operation without sacrificing efficiency.

Advantage of Using an RV Dehumidifier

RVs can get damp and humid for plenty of reasons, including the climate of your destination, especially during summer and spring, or just the different activities that you do inside such as washing dishes, hanging laundry to dry clothes faster, or showering. If left unchecked, high humidity affects the contents of your vehicle as well as the comfort of your family when staying in the vehicle. This is why you must have a dehumidifier on hand. Here are several advantages of using an RV dehumidifier.

Prevents Mold, Mildew, and Allergens

When you’re not traveling or using your RV, the air inside grows stale. If the humidity is left unchecked, the next time you go inside, you might find the rotting smell of mold and mildew. One of the key benefits of a dehumidifier is reducing the moisture in the air, which is an important part of preventing the growth of mold, mildew, and bacteria. While it won’t kill any of these invaders that are already in your RV, a dehumidifier will keep them from growing out of control.

Damage to Your RV’s Furniture

High humidity and temperature are both conducive to the growth of fungi such as mold and mildew. RVs have plenty of wooden furniture inside, and some species of fungi cause dry rot by eating through the wood, making it lose strength and integrity. Metal furniture is also at risk, as increased moisture in the air increases the oxidation rate of metal, resulting in rust. In the worst conditions, soft surfaces like cushions can develop mold infestations if they remain wet. Thus, reducing moisture in the air to acceptable levels with a dehumidifier prevents damage to your RV’s furniture as well.

Improves RVs Air Conditioning

Most people are unaware of this, but one function of an air conditioner is to reduce the humidity in the air while cooling it. A dehumidifier reduces water vapor, making it easier for your air conditioner’s compressor to cool the air and use less energy. Reducing energy usage means less gas usage and extra savings on your part.

What are the Different Types of RV Dehumidifiers?

We can categorize a dehumidifier unit according to the technology they use, and there are two main types: refrigerant and desiccant dehumidifier.

Refrigerant dehumidifiers are the most common type on the market, and most residential dehumidifiers fall under the desiccant category. A desiccant dehumidifier works by drawing in humid air and it over refrigerated evaporator coils, hence the name. The evaporator coils cool the air, causing water vapor to condense and turn into liquid. The water produced through condensation then drops down to a collection tank or through a hose for disposal. The refrigerant dehumidifier unit then moves the air past warm condensing coils to further dry it before pushing it back out into the environment.

Desiccant dehumidifiers work differently. They draw air in, but instead of passing it through evaporator coils, desiccant units pass it through a rotor filled with water-trapping materials known as desiccants. Desiccants such as silica gel have molecular structures that allow them to absorb moisture from the air. You can usually find these gel packets in vitamin bottles or shoe boxes to keep the contents dry. Once the desiccants absorb moisture, the dried air is blown back out into the environment.

Another difference between refrigerant dehumidifiers and a desiccant dehumidifier unit is how the machine disposes of the excess water. Desiccants trap the water inside beads, meaning there’s no tank to empty. However, the beads must be recharged with heat or replaced entirely. Refrigerant dehumidifiers collect liquid water in a tank, which must either be emptied by hand or pumped out through a hose.

In terms of convenience, maintenance, and expense associated with each type of dehumidifier, we recommend purchasing a refrigerant dehumidifier over a desiccant one for your RV.

Regular Dehumidifier vs. RV Dehumidifier – What’s the Difference?

Do you have to purchase a dehumidifier unit specific to an RV, or best dehumidifier for camper? Well, you can use all RV dehumidifiers for your home, but you can’t use all residential dehumidifiers for your RV. We’ve already outlined the different things you need to consider when purchasing an RV dehumidifier unit, but to reiterate, there are special conditions in the RV that make a residential dehumidifier impractical.

First of all, you need to consider the constant movement. While some regular dehumidifiers have wheels so you can move them around, they operate optimally when they are in a single location. A regular dehumidifier is not built to have their parts shaken constantly by a vibrating vehicle in motion. On the other hand, RV units are meant to be compact and portable, so you can either build them into your RV or place them on a countertop where they will still do their job properly.

Another difference is their size and capacity. A regular dehumidifier is larger in build and have higher capacities compared to RV ones. However, RV dehumidifiers do not need a high capacity since you only need to remove moisture from a relatively small area. Inside any vehicle, space is at a premium, and the compactness of an RV dehumidifier is a big advantage for them.

Finally, there is energy usage. Regular dehumidifiers, even Energy Star-certified models, still draw more energy compared to RV units. Energy consumption is at a premium if you’re constantly traveling, as you need to use gas to operate your generator. The reduced amount of electricity used by an RV dehumidifier is definitely an advantage in this case.

Wrapping It Up

Finding an appropriate dehumidifier for your RV can be quite difficult due to the special circumstances that surround life on the road. You’ll find that buying a dehumidifier for an RV requires different considerations than buying one for a stationary residence. We hope our compact dehumidifier reviews works for your RV. If it doesn’t, we hope at the very least our comprehensive RV dehumidifier reviews helps you find the best dehumidifier for RV to suit your needs.

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