Best Dehumidifiers for RV: Keeping Your Home on Wheels Dry and Comfortable

Naomi O'Colman

Updated on:

Best Dehumidifiers for RV

Curious about the best dehumidifiers for your RV? We’ve got you covered!

Whether you’re cruising through humid destinations or gearing up for off-season storage, finding the right dehumidifier can transform your RV experience.

Say goodbye to mold, mustiness, and excess moisture – we’re here to help you choose the perfect companion for a comfortable and worry-free journey.

Let’s dive in and discover your ideal RV dehumidifier!

Table of Contents

Best Dehumidifiers for RV [Updated 2023]

Best RV AC ft. Dehumidifier PREMIUM: EENOUR PA600 Portable Air Conditioner

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The EENOUR PA600 Portable Air Conditioner is a versatile cooling device designed to provide fast and efficient cooling, along with additional functionalities like fan, dehumidifier, and sleep mode. It is suitable for various settings, including homes, RVs, boats, and outdoor activities.

Key Features:

  • Fast cooling: Rapidly decreases outlet air temperature in just 3 minutes.
  • 4-in-1 mode: Offers cooling, fan, dehumidifier, and sleep mode.
  • 8H timer: Can be set to run for a specific time to save energy.
  • Remote control: Can be operated remotely using the included remote control.
  • Multiple charging options: Can be charged via AC wall outlet, portable power station, or car battery.
  • Reversible hose: Hose can be adjusted to exhaust hot air indoors or outdoors.
  • Low noise: Produces only 42 dB noise, suitable for quiet spaces.
  • Portability: Lightweight and easy to move, making it ideal for RVs and outdoor use.
  • Energy efficiency: Consumes less energy compared to traditional air conditioners.


  • Fast cooling
  • Versatile modes
  • Timer for energy-saving
  • Remote control convenience
  • Multiple charging options
  • Low noise
  • Pportability and energy efficiency


  • Specific cooling capacity suitable for smaller home rooms or RV
  • Limited cooling range


The EENOUR PA600 Portable Air Conditioner is an impressive cooling solution with a range of features that make it suitable for various environments. Its fast cooling capability, multi-functional modes, and energy efficiency set it apart. While it may have limitations in terms of room size, its overall performance, portability, and ease of use make it a highly recommended option for those seeking effective and versatile cooling, especially for smaller spaces and on-the-go activities.

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Best RV Dehumidifier Overall: hOmeLabs 4500 Sq. Ft Energy Star Dehumidifier

The hOmeLabs 4500 Sq. Ft Energy Star Dehumidifier is a high-capacity dehumidifier designed to effectively remove excess moisture from the air in large spaces, making it ideal for areas up to 4500 square feet.

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Key Features:

  • Brand: hOmeLabs
  • Floor Area Coverage: 4500 Square Feet
  • Color: White
  • Special Features: Sleep Timer, Auto Shut-Off & Restart, Removable Water tank, Continuous Drain, Defrost Function
  • Capacity: 1.6 Gallons
  • Tank Volume: 1.6 Gallons
  • Dimensions: 11″D x 15.4″W x 24.3″H
  • Energy Star certified for energy efficiency
  • Built-in pump compressor for moisture removal
  • Removable water tank with 1.6-gallon capacity
  • Suitable for rooms up to 4500 square feet
  • Sleep timer and auto shut-off function
  • Defrost function to prevent freezing


  • Energy Star certified for efficiency
  • Powerful moisture removal for large areas
  • Versatile features like sleep timer and auto shut-off
  • Defrost function for preventing freezing.


  • Large size
  • Water tank can fill up quickly
  • Potentially requiring more frequent emptying.


The hOmeLabs 4500 Sq. Ft Energy Star Dehumidifier is a robust and efficient solution for tackling high humidity in large spaces. Its Energy Star certification ensures energy savings, while its powerful moisture removal capabilities make it suitable for extensive coverage. The inclusion of features like the sleep timer, auto shut-off, and defrost function enhance its convenience and usability. However, potential users should be mindful of its larger size and the need for regular maintenance of the water tank. Overall, if you’re seeking an effective dehumidifier for sizable areas, the hOmeLabs 4500 Sq. Ft Energy Star Dehumidifier is a strong contender that offers both performance and versatility.

Best Small RV Dehumidifier: Ivation 13-Pint Small-Area Desiccant Dehumidifier

The Ivation 13-Pint Small-Area Desiccant Dehumidifier is a compact and quiet dehumidifier that is ideal for smaller spaces, such as bathrooms, attics, crawlspaces, and closets. It can remove up to 13 pints of moisture per day, which is enough to keep these areas dry and comfortable.

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  • Compact and lightweight design makes it easy to move around
  • Quiet operation won’t disturb your sleep or work
  • Continuous drainage option allows for uninterrupted operation
  • Digital display with touch buttons makes it easy to control
  • Adjustable swinging air outlet for superior directional control
  • Removable water tank for easy emptying
  • Long power cord for convenient placement
  • Comes with a 1-year warranty


  • May not be powerful enough for larger spaces
  • Can be more expensive than compressor-based dehumidifiers
  • Filters need to be replaced more frequently than compressor-based dehumidifiers


The Ivation 13-Pint Small-Area Desiccant Dehumidifier is a great option for people who need a dehumidifier for smaller spaces. It is compact, quiet, and easy to use. However, it may not be powerful enough for larger spaces and can be more expensive than compressor-based dehumidifiers.

The Ivation 13-Pint Small-Area Desiccant Dehumidifier is a good choice for people who need a dehumidifier for smaller spaces and are willing to pay a bit more for a quiet and compact unit.

Best Dehumidifier for RV with Drain Hose: InvisiPure Hydrowave Dehumidifier

The InvisiPure Hydrowave Dehumidifier is a small, compact, and portable dehumidifier that is perfect for use in small spaces such as bedrooms, bathrooms, RVs, and boats. It uses Peltier dehumidification technology to remove moisture from the air, and it can remove up to 16-27 ounces of moisture per day.

The dehumidifier is quiet and energy-efficient, and it has a built-in humidistat so you can set it to the desired humidity level. It also has a continuous drain hose attachment so you can connect it to a drain pipe for continuous drainage.

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  • Compact and portable
  • Quiet and energy-efficient
  • Removes up to 16-27 ounces of moisture per day
  • Built-in humidistat
  • Continuous drain hose attachment
  • Affordable


  • Not suitable for large spaces
  • Tank needs to be emptied regularly
  • Cord is not very long
  • Some users have reported that the fan can be noisy


InvisiPure Hydrowave Dehumidifier is a great option for small spaces where you need to remove moisture. It is quiet, energy-efficient, and affordable.

If you are looking for a small, quiet, and energy-efficient dehumidifier for your bedroom, bathroom, RV, or boat, then the InvisiPure Hydrowave Dehumidifier is a great option. However, if you need a dehumidifier for a larger space, then you may want to consider a different model.

Best Compact & Versatile RV Humidifier: COSVII Upgraded Dehumidifier for Home & Bedroom

The COSVII Upgraded Dehumidifier is a quiet, portable dehumidifier that can effectively remove up to 34oz/1000ml of moisture daily, lowering indoor humidity from 80% to 40%. It is perfect for use in humid areas or those with respiratory issues, and it can provide a drier and more comfortable living space for you.

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  • Quiet operation: The dehumidifier is very quiet, so you can use it in bedrooms, living rooms, and other areas where you may not always be present to monitor the unit.
  • Portable design: The dehumidifier is lightweight and portable, so you can easily move it from room to room as needed.
  • Energy-efficient: The dehumidifier consumes only 75W of power, so it is energy-efficient and cost-effective to use.
  • Long water tank: The dehumidifier has a large water tank that can hold up to 68oz of water, so you don’t have to empty it as often.
  • Auto shut-off feature: The dehumidifier has an auto shut-off feature that will turn it off when the water tank is full, preventing overflow.


  • Small water tank: The water tank is not as large as some other dehumidifiers, so you may need to empty it more often.
  • Not suitable for large areas: The dehumidifier is only suitable for small to medium-sized areas, so it may not be powerful enough for large rooms or basements.
  • Not suitable for humid climates: The dehumidifier may not be able to keep up with the humidity in very humid climates.


COSVII Upgraded Dehumidifier is a great option for those looking for a quiet, portable, and energy-efficient dehumidifier for small to medium-sized areas. However, if you have a large area or live in a very humid climate, you may need to consider a more powerful dehumidifier.

I would recommend the COSVII Upgraded Dehumidifier to anyone looking for a quiet, portable, and energy-efficient dehumidifier for small to medium-sized areas. It is easy to use and has a number of features that make it a great value for the price. However, if you have a large area or live in a very humid climate, you may need to consider a more powerful dehumidifier.

What is an RV Dehumidifier?

An RV dehumidifier is a specialized appliance designed to remove excess moisture from the air inside a recreational vehicle (RV). It helps control humidity levels to prevent issues such as mold, mildew, condensation, and other moisture-related problems that can arise in the confined space of an RV. RV dehumidifiers come in various sizes and types to suit different RV sizes, climates, and preferences.

Importance of Dehumidifiers in RVs

Recreational Vehicles (RVs) provide a unique and adventurous way to travel and experience the outdoors. Whether it’s a cross-country road trip, camping in the wilderness, or simply exploring new destinations, RVs offer a comfortable and convenient home on wheels. However, one challenge that many RV owners face, especially in humid climates or during certain seasons, is excessive humidity within the vehicle.

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Humidity can accumulate inside an RV due to various factors, such as cooking, showering, breathing, and even weather conditions. If left unchecked, high humidity levels can lead to a range of issues that can affect both the comfort and structural integrity of the RV. Some of these issues include:

  • Condensation: High humidity levels can cause condensation to form on windows, walls, and other surfaces. This can lead to mold, mildew, and water damage over time.
  • Musty Odors: Excess moisture can create a damp and musty smell inside the RV, making it less pleasant to be in.
  • Mold and Mildew Growth: Humidity provides an ideal environment for mold and mildew to thrive. These growths can not only damage the interior of the RV but also pose health risks to occupants.
  • Allergens and Respiratory Issues: Mold, dust mites, and other allergens are more likely to proliferate in a humid environment, potentially exacerbating respiratory problems for occupants.
  • Deterioration of Materials: High humidity can accelerate the deterioration of wood, fabrics, and other materials, potentially shortening the lifespan of the RV’s interior components.

Key features of an RV dehumidifier

Moisture Removal

The primary function of an RV dehumidifier is to extract moisture from the air. It does this by drawing in humid air, cooling it to condense the moisture, and then releasing dry air back into the RV.

Size and Capacity

RV dehumidifiers are available in different sizes and moisture removal capacities, typically measured in pints per 24 hours. The size you choose should match the dimensions of your RV and the humidity levels you expect to encounter.


Many RV dehumidifiers are designed to be lightweight and portable, making them easy to move around within the RV as needed.

Energy Efficiency

Some models are designed to be energy-efficient, which is crucial in an RV where power sources may be limited. Look for models with energy-saving features and certifications like Energy Star.

Drainage Options

RV dehumidifiers come with various drainage options. They may have a built-in water reservoir that needs periodic emptying, or they can offer continuous drainage through a hose connected to a drain point.

Humidity Control

Some models feature adjustable humidity settings, allowing you to set a target humidity level for the unit to maintain.

Desiccant vs. Compressor

RV dehumidifiers can be categorized into desiccant and compressor types. Desiccant dehumidifiers use a desiccant material to absorb moisture, making them effective even in colder temperatures. Compressor dehumidifiers use a refrigeration cycle to remove moisture and are more suitable for warmer environments.

Quiet Operation

Some models are designed to operate quietly, which can be important in the close quarters of an RV.

Hygrometer Compatibility

Some RV dehumidifiers can be used in conjunction with a hygrometer, a device that measures humidity levels. This allows you to accurately monitor and control the humidity in your RV.

RV dehumidifiers are valuable additions to your RV’s appliances, especially if you frequently travel in humid or damp environments. They help maintain a comfortable, dry, and healthy indoor environment, ensuring a more enjoyable and problem-free RV experience.

How Does RV Dehumidifier Work?

An RV dehumidifier works by removing excess moisture from the air inside the vehicle, helping to control humidity levels and prevent issues like mold, mildew, and condensation. The process involves several key components and stages:

  1. Air Intake: The dehumidifier draws in humid air from the surrounding environment through an intake grille.
  2. Air Cooling: The humid air passes over a cooling coil (evaporator), which is kept at a lower temperature. As the air cools, its moisture begins to condense into water droplets.
  3. Condensation: The condensed moisture collects on the cooling coil and drips down into a collection reservoir or drainage system.
  4. Dry Air Release: The now-cooled and dehumidified air is reheated before being released back into the RV. This reheat process prevents the air from feeling overly cold and damp.
  5. Water Removal: The collected moisture either accumulates in a built-in water reservoir, which needs to be emptied periodically, or it’s drained away through a continuous drainage system.
  6. Compressor (in Compressor Dehumidifiers): In compressor dehumidifiers, a compressor is used to further cool the air and facilitate moisture removal. The air is first cooled on the evaporator coil, then it’s reheated and released into the room.
  7. Desiccant Material (in Desiccant Dehumidifiers): In desiccant dehumidifiers, a desiccant material (such as silica gel) absorbs moisture from the air. The desiccant material is then heated to release the accumulated moisture and regenerate its capacity.
  8. Humidity Control: Some dehumidifiers offer humidity control settings, allowing you to set a target humidity level. The dehumidifier’s sensors monitor the humidity in the air, and the unit adjusts its operation to maintain the desired level.
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The goal of an RV dehumidifier is to achieve a balance between removing excess moisture from the air and preventing the air from becoming too dry. This helps maintain a comfortable and healthy indoor environment while preventing the negative effects of high humidity levels. The specific operation of the dehumidifier can vary based on its type (desiccant or compressor), features, and design.

Factors to Consider When Choosing a Dehumidifier for an RV

Selecting the right dehumidifier for your RV is crucial to maintaining a comfortable and healthy indoor environment. Here are some key factors to consider when making your choice:

Size and Portability

Choosing the Right Size for an RV

Consider the interior space of your RV when selecting a dehumidifier. Smaller RVs will require smaller units, while larger ones may need more powerful models. Ensure that the dehumidifier can easily fit in the available space without obstructing walkways or storage areas.

Portability Considerations

Look for a lightweight and compact dehumidifier that is easy to move around your RV. Portability is crucial, especially if you plan to use the dehumidifier in different areas of the vehicle or even outside the RV.

Moisture Removal Capacity

Determining the Optimal Capacity

The moisture removal capacity of a dehumidifier is measured in pints per 24 hours. Consider the humidity levels in the areas you plan to travel and the size of your RV when determining the optimal capacity. If you’re in a particularly humid climate, opt for a higher capacity unit.

Match to the RV Size

Choose a dehumidifier that matches the size of your RV. Smaller RVs may require dehumidifiers with lower capacities, while larger ones may benefit from higher-capacity models to effectively control humidity.

Energy Efficiency

Importance of Energy-Efficient Models

Energy efficiency is crucial for RVs, where power sources might be limited. Look for dehumidifiers with Energy Star ratings or other energy-saving features. Efficient models will help you save on power consumption and extend the lifespan of your RV’s battery or generator.

Saving Power in an RV Environment

Choose a dehumidifier with adjustable humidity settings to prevent over-dehumidification. This will help you conserve energy by only running the unit when necessary. Additionally, some models come with timers or programmable settings to further optimize energy usage.

Drainage Options

Continuous vs. Manual Draining

Dehumidifiers can offer different drainage options. Manual draining involves emptying a collection reservoir when it’s full. Continuous draining, on the other hand, allows the dehumidifier to discharge water continuously without requiring constant attention.

Built-in Pumps and Gravity Drainage

Some models come with built-in pumps that can push water to a sink, drain, or outside the RV. Others rely on gravity drainage, where a hose is connected to a lower drain point. Consider your setup and convenience preferences when choosing the drainage option that suits you best.

Noise Level

Keeping Noise to a Minimum in Close Quarters

In the confined space of an RV, noise can be a significant consideration. Look for dehumidifiers with low noise levels, especially if you plan to use the unit while sleeping or during quiet hours.

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Quiet Operation Options

Some dehumidifiers are specifically designed for quiet operation. These models use advanced technology to reduce noise while still effectively removing moisture from the air. Consider such options for a more peaceful RV environment.

Humidity Control Settings

Look for a dehumidifier with adjustable humidity settings so you can customize the level of moisture removal based on your preferences and the current conditions.

Defrost Function

If you’ll be traveling to colder climates, a dehumidifier with a defrost function can prevent freezing and maintain optimal performance.

Maintenance and Cleaning

Easy-to-clean filters and user-friendly maintenance features can make your experience with the dehumidifier more convenient.


Dehumidifiers come in a range of prices, so establish a budget that suits your needs and explore options within that range.

By carefully considering these factors and selecting the right dehumidifier for your RV, you can help ensure a more comfortable, odor-free, and healthy living environment during your travels.

Types of Dehumidifiers for RVs

Dehumidifiers for RVs come in various types, each with its own set of pros and cons. Let’s explore the three main types: desiccant dehumidifiers, compressor dehumidifiers, and thermoelectric dehumidifiers.

1. Desiccant Dehumidifiers


  • Highly effective in low-temperature environments.
  • Quiet operation compared to compressor dehumidifiers.
  • Lightweight and portable, making them suitable for RVs.
  • Can operate in colder temperatures without freezing issues.
  • No refrigerants involved, making them environmentally friendly.


  • Typically have lower moisture removal capacities compared to compressor dehumidifiers.
  • Generally less energy-efficient.
  • May require more frequent maintenance, such as replacing the desiccant material.

Ideal Situations for Use

  • Cold or cooler climates where freezing may be a concern.
  • Situations where quiet operation is important.
  • RVs with limited power availability or in off-grid scenarios.

2. Compressor Dehumidifiers:


  • High moisture removal capacity, suitable for larger RVs or more humid environments.
  • Generally more energy-efficient than desiccant dehumidifiers.
  • Effective in warmer temperatures.
  • Low maintenance requirements.


  • Can be noisy, especially in larger units.
  • May not perform well in very cold temperatures or low-humidity conditions.
  • Some models may produce heat, which could be undesirable in certain situations.

Suitable Conditions for Use

  • Humid and warm environments.
  • Larger RVs where higher moisture removal rates are needed.
  • Situations where noise is not a primary concern.

3. Thermoelectric Dehumidifiers:


  • Quiet operation due to lack of a compressor.
  • Compact and lightweight, making them suitable for small spaces.
  • No refrigerants, making them environmentally friendly.
  • Can cool the air slightly while dehumidifying.


  • Limited moisture removal capacity, better suited for smaller spaces.
  • Less effective in very humid or extremely wet conditions.
  • Not as efficient as compressor dehumidifiers for larger spaces.

Appropriate Scenarios for Use

  • Small to medium-sized RVs with moderate humidity issues.
  • Situations where minimal noise is desired.
  • Environments with mild humidity concerns.

Maintenance and Tips for Effective Dehumidifier Use in an RV

1. Regular Cleaning and Air Filter Maintenance

Preventing Mold and Mildew Growth

Regularly clean the dehumidifier’s water reservoir and any components that come into contact with moisture. Mold and mildew can develop in damp environments, so keeping the unit clean helps prevent their growth and the associated odors.

Extending the Lifespan of the Unit

Clean or replace the air filter as recommended by the manufacturer. A clogged or dirty filter can hinder the dehumidifier’s performance and reduce its efficiency. Proper maintenance can extend the lifespan of the unit and ensure consistent moisture removal.

2. Proper Placement

Ideal Locations for Maximum Efficiency

Place the dehumidifier in areas where moisture accumulation is most likely, such as near the shower, kitchen, or other high-humidity zones. This will help prevent condensation on windows, walls, and other surfaces.

Avoiding Common Placement Mistakes

Avoid placing the dehumidifier near sources of heat or direct sunlight, as this can affect its performance. Also, ensure that the unit has adequate clearance around it for proper air circulation. Placing it too close to walls or furniture may impede airflow and reduce its effectiveness.

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3. Using a Hygrometer

Monitoring Humidity Levels Accurately

Use a hygrometer to measure the humidity levels inside your RV. This device will help you determine if your dehumidifier is set to an appropriate level. Ideally, indoor humidity should be maintained between 30% and 50% for optimal comfort and to prevent moisture-related issues.

Adjusting the Dehumidifier Settings

Based on the readings from your hygrometer, adjust the dehumidifier settings accordingly. Some models allow you to set a specific target humidity level. This prevents over-dehumidification, which can make the air too dry and uncomfortable.

Additional Tips

  • Regularly Empty the Reservoir: If your dehumidifier doesn’t have continuous drainage, make sure to empty the water reservoir regularly to prevent overflowing.
  • Inspect and Maintain Drainage System: If you’re using a continuous drainage system, ensure that the drain hose is properly connected and not blocked. Check for any leaks or issues in the drainage setup.
  • Use During Showers and Cooking: Run the dehumidifier during and after cooking or taking a shower to quickly remove excess moisture from the air.
  • Consider a Timer: Some dehumidifiers come with timers that allow you to schedule when the unit operates. This can help you manage energy usage and prevent over-dehumidification.
  • Off-Season Storage: If you’re storing your RV for an extended period, clean and dry the dehumidifier thoroughly before storing it. This prevents the growth of mold or mildew in the unit.

Frequently Asked Questions

What size of dehumidifier do I need for my RV?

The size of the dehumidifier depends on your RV’s interior space and humidity levels. Generally, for small RVs, a 20-30 pint capacity unit might suffice, while larger RVs may require 50-70 pints or more. Consider both the size of your RV and the humidity conditions you’ll encounter.

Can I run a dehumidifier on solar power in my RV?

Yes, you can run a dehumidifier on solar power, but it will depend on the dehumidifier’s power requirements and the capacity of your RV’s solar setup. Make sure your solar system can provide enough power to run the dehumidifier effectively.

How often should I clean the dehumidifier’s water tank?

It’s a good practice to clean the water tank every one to two weeks to prevent mold and bacteria growth. Empty the tank, clean it with mild soap and water, and thoroughly dry it before reassembly.

Can I use a dehumidifier in cold weather RVing?

Yes, you can use a dehumidifier in cold weather RVing. Desiccant dehumidifiers are particularly suitable for cold environments as they operate effectively at lower temperatures.

Are desiccant dehumidifiers quieter than compressor ones?

Yes, desiccant dehumidifiers are generally quieter than compressor dehumidifiers due to their operation without a compressor. This can be beneficial in an RV where noise levels are a concern.

Do I need a professional to install a dehumidifier with a pump?

Installation of a dehumidifier with a pump is typically straightforward and doesn’t require professional assistance. Follow the manufacturer’s instructions for proper setup and drainage.

Will a dehumidifier eliminate the need for ventilation in my RV?

While a dehumidifier can help control moisture, proper ventilation is still important to ensure fresh air exchange and prevent the buildup of stale air, odors, and potential indoor pollutants.

Can I use scented water additives in my dehumidifier?

It’s generally not recommended to use scented water additives in a dehumidifier, as they could damage the unit or affect its performance. Instead, focus on proper maintenance and ventilation to address odors.

How do I prevent the dehumidifier from freezing in winter?

To prevent freezing, use a dehumidifier designed for low-temperature operation or choose a desiccant model, which is better suited for colder conditions. You can also maintain a minimum temperature inside the RV to prevent freezing.

Is it better to have one large dehumidifier or multiple smaller ones in a larger RV?

It’s often more effective to have multiple smaller dehumidifiers strategically placed in different areas of a larger RV. This allows for better coverage and control over moisture levels throughout the vehicle.

Final Words

Maintaining the perfect balance of humidity is paramount for comfort and well-being. After exploring a range of options, we’ve uncovered the best humidifiers for your mobile oasis.

From compact designs tailored to tight spaces to energy-efficient models that keep your RV cozy without straining power sources, our top picks cater to every need.

Whether you’re embarking on a new adventure or seeking an upgrade, these humidifiers ensure a harmonious environment, free from excessive dryness. Embrace comfort and enhance your RV lifestyle with the finest humidifiers – your path to a refreshing and enjoyable journey awaits.