The Best Car Moisture Absorber/Dehumidifier (Reviews & Guide)

Last Updated on February 20, 2024 by Justin Williams

When most people think about the dangers of humidity, they think about how it can make them feel uncomfortable. However, if you live in a humid climate, excess moisture in the air can actually harm your health and damage your belongings, including car furniture. Using a mini dehumidifier for car interior can help protect your car furniture from the effects of humidity.

In this article, we are going to look at the best car moisture absorbers in 2024. We will review each product based on its features, performance and affordability.

Let's dig deeper!

The 3 Best Car Moisture Absorbers in 2024

How to Get Moisture out of Car

If you're like most people, you probably don't think about your car's humidity levels until there's a problem. High humidity can cause a variety of issues, from rust to mold and condensation buildup.

Plus, if you've ever been in a car that's been sitting in the sun on a hot day, you know how uncomfortable it can be. Not only is the temperature inside the car unbearable, but the humidity makes it difficult to breathe.

Fortunately, there are several ways to absorb moisture in your car and keep it at healthy levels.

One way to combat the excess moisture is to put a small fan in your car and keep it running along with the AC. This will improve air circulation and make it drier quickly. Another idea is to use baking soda to absorb moisture in your car. Simply add 100 - 200 grams of baking soda in small boxes, then let them sit open inside your car for a few hours.

However, the most effective way is to use a portable dehumidifier for car interior. These small moisture absorbers are desiccant-based which means they absorb moisture from the air without the need of an electrical power supply. Those units work best in small areas such as closets, small RVs, cars or truck cabins.

What is A Desiccant Dehumidifier/Moisture Absorber

A desiccant dehumidifier is a device that reduces humidity from the air. It does this by using a material called a desiccant, which absorbs water vapor from the air. Desiccants come in many different forms, but the most common type is eco-friendly silica gel or crystals. Other common desiccants include activated carbon and clay.

This type of dehumidifier is often used in small spaces, such as closets, gun safes or cars, where there is limited space for a traditional dehumidifier. Desiccant dehumidifiers are also very easy to use and in most cases, there's no electricity required to run this type of dehumidifier.

Reviews of the Best Moisture Absorber for Cars in 2024



Absorbing material


Editor Ratings


Calcium Chloride



Silicon Dioxide



Crystals (calcium chloride & sodium chloride)


WENKO Dehumidifier Portable review

There is no doubt that a dehumidifier is a must-have appliance for protecting car interior, especially those in humid climates. But with all of the different brands and models on the market, it can be hard to decide which one is right for you. The WENKO Portable Dehumidifier is a great option for anyone looking for an affordable and compact dehumidifier for car.

This dehumidifier features a sleek design with a beautiful color that will complement any car furniture. Thanks to its small and portable size, the unit can fit into any car or truck cabin without any hassle, making it perfect for use in tight spaces. The moisture killer offers intensive protection for car furniture and valuable items against the damaging effects of humidity.

This portable dehumidifier does not require any electricity as it is powered by a calcium block instead. It is very simple to operate – just place the calcium block in the basket, and the dehumidifier will start to work. The block can last for up to 3 months and you can refill it easily when it runs out.

The water tank has a clear panel on it which allows you to see the level of water inside. This is helpful, as you can tell when it's time to empty the tank. 

What We Liked

  • German quality
  • Many color options available
  • Can last for up to 3 months

What We Didn't Like

  • Refill packs are quite expensive
Our Ratings

BARSKA Safe Moisture Absorber Dehumidifier review

The dehumidifier by Barska is the perfect accessory for any car or truck where moisture can be a problem. This portable dehumidifier for car absorbs moisture from the surrounding air, which can help protect your car interior and belongings from mold, mildew, and rust.

This dehumidifier comes with a color changing humidity indicator that changes color from blue to pink when the collected moisture reaches a certain level and it's time to renew the unit. Because this moisture remover for car is microwave-safe designed, you can renew it by putting it in the microwave and heating it for 4 mins at 600W. Then it's ready to go again!

The moisture-absorbing substance used in the Barska dehumidifier is Silicon Dioxide. It's totally safe when you evaporate collected moisture with a microwave. Please note that when you are using your microwave to renew this dehumidifier, it is important to keep the area inside the microwave clean. If there is food or other debris in the area, it can cause scorching to the fabric and make the dehumidifier not work properly. Make sure to clean up any messes around the microwave before using it to heat up your dehumidifier.

Because of its very small size and capacity, the Barska dehumidifier is not a good choice for larger areas such as RVs, small bedrooms or bathrooms. To get the best results, you can use it for your cars, closets or gun safes.

What We Liked

  • Perfect for Sedan, SUV cars
  • Can be renewed easily by heating it in a microwave
  • Very portable

What We Didn't Like

  • The size and capacity are quite small
Our Ratings

Star Brite No Damp Dehumidifier for car review

If you're someone who's struggled with musty odors in your car, truck or RV, then you'll want to check out the Star Brite No Damp Dehumidifier & Moisture Absorber. This portable dehumidifier for car is designed to help prevent those pesky odors from forming in the first place.

It's easy to use - just put it in your car and let it do the job - and it doesn't require any special filters or maintenance. This unit pulls moisture out of the air using crystals (a mixture of calcium chloride and sodium chloride). Plus, it's small enough to fit just about any car or truck, so you can keep your vehicle smelling fresh and dry no matter what.

This dehumidifier comes in 2 sizes: 12-ounce and 36-ounce. If you're looking for a dehumidifier to protect a small space, such as a closet, boat cabin or car, the 12-ounce size is ideal. On the other hand, the 36-ounce size is perfect for larger areas such as small bedrooms or basements.

Humidity can play a significant role in how long dehumidifier crystals last. If the treated area has a high level of humidity, the crystals will not last as long as they would in a lower humidity environment. But according to our tests, in small areas such as cars or closets, this dehumidifier can last for up to 3 months. The refill pack is available at an affordable price as well.

What We Liked

  • Remove moisture and musty smell effectively
  • Up to 3 months of usage
  • Cheap refill pack

What We Didn't Like

  • It doesn't work well in very humid areas
Our Ratings

Things to Consider When Choosing The Best Car Dehumidifier

No one enjoys getting into a car that smells musty and damp. The best way to prevent mold and musty odors from happening is to use a car interior moisture absorber. There are many different types of car moisture absorbers on the market, so it can be difficult to decide which one is right for you.

Here are some things to consider when choosing the best moisture absorber for your car.

  • Size and capacity: The first thing you need to consider is the size of the container. Some moisture absorbers come in small, portable containers, while others are large and need to be placed in a specific area of the car. If you need a portable option, make sure it is easy to carry and fits into your luggage or storage space.
  • Moisture absorbing substance: The second thing you should consider is the type of material the moisture absorber is made out of. Some materials work better than others at trapping moisture. In most cases, the substances used in dehumidifiers for car are calcium chloride or silicon dioxide which are totally safe for your health.
  • Lifespan and durability: The lifespan of the dehumidifier is also a factor you should consider. This means that the product can last for at least 1-2 months for each use. You should not have to refill/renew it that often.
  • Renewability: Another thing you should take into consideration when choosing a moisture remover for car is its renewability. Is the refill pack also available in the store? Or is there any way to renew the dehumidifier without having to buy the refill pack?
  • Price: Last but not least, уоu should take a look at the price of the product. This is very important because for some people, saving money is one of the most important things. The price range of car dehumidifiers that we have listed above ranges from $14 to $20.

What We Found

One thing that we found out while doing this roundup is that all the car moisture absorbers are desiccant-based which means they use substances like calcium chloride, sodium chloride or silicon dioxide to absorb moisture.

They are very portable, no electricity or battery required so that the capability and the moisture-absorbing ability are not that powerful. Those dehumidifiers work best in small closed areas such as cars, truck cabins or wardrobes. You should not put them in a room since it may not run as efficiently as expected.

And the Winner is...

After researching and testing those dehumidifiers thoroughly, we voted the Wenko portable dehumidifier as the best vehicle dehumidifier on the market today. This is because the product has a good capacity, a large reservoir and a good performance when compared to others in the same conditions.

The other car dehumidifiers that we have reviewed are all pretty good, but they are either too small or don't have enough positive reviews.

Final Thoughts

We preferred the Wenko dehumidifier among the top 3 because it has a large capacity, is lightweight and easy to operate. Whether you intend to buy one of the three dehumidifiers we have suggested above or buy other models that we have not mentioned, remember to read the things to consider section carefully before making your own decision.

Finding the best dehumidifier for car can be tricky so we hope that you found this review useful. If you have any suggestions or questions, please drop a line in the comment section below. We would be more than happy to hear from you.

0/5 (0 Reviews)

My name is Justin Williams. I am the founder and blogger at (read more about us). I was an allergy sufferer and that is also the reason why I began my trek to finding the best dehumidifier for my own personal health issues. All of the dehumidifier top picks on the site were put through their paces by Lance Perez - our dehumidifier researcher. He put each one through a series of tests to see how well they performed. Then, our editorial team compiled the insights into articles and published them.

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