The Best Gun Safe Dehumidifier Review (2021)

The Best Gun Safe Dehumidifier

Guns are made with metal parts and as with any metal, they can begin to degrade and rust in a humid environment. This is why it is important for a gun owner to find the best humidifier to ensure their firearms’ longevity and to protect your guns. Failure to check the humidity levels in your gun safe can be rather disastrous to the integrity of your weapon.

With that in mind, if you don’t want your guns, ammo, or other firearm accessories to become vulnerable to corrosion, it is critical that you invest in a good dehumidifier for your gun safe. However, we also understand that there are thousands of different dehumidifiers available on the market, and picking one out for your guns may not be an easy task. Hence, we have gotten down on our knees and did the dirty work to list reviews of the best gun safe dehumidifiers you can get now, as well as some information that will help you in your search for the best model to suit your needs.

DehumidifiersNameEditor’s CommentRatingGet The Best Deal
GoldenRob 24” Dehumidifier Rod

Most Recommended Option

1. Silent operation
2. Energy efficient
3. Lifetime warranty

Eva-Dry E-333 Renewable Mini Dehumidifier1. Compact size suits smaller space
2. Reliable product
3. Moisture removal capacity of 4 to 5 ounces
9.5/10SHOP NOW
LOCKDOWN Dehumidifier Rod1. Easy to install
2. Compact size to suit smaller spaces
3. Affordable price
9.5/10SHOP NOW
hOmeLabs Compact Dehumidifier1. Comes with convenient features
2. Quiet operation
3. Compact size to suit smaller space
9.0/10Currently unavailable
Pro Breeze Renewable Cordless Mini Dehumidifier1. Easy to use
2. Non-toxic to be safe for pets and children
3. Moisture absorption capacity of up to 150 mL
8.0/10Currently unavailable

What Damage Can Too Much Humidity Do?

If you’re wondering how much damage can too much humidity do to your safe, guns, and other accessories, then you should continue to read on. While the humidity levels will not impact your health and safety, there are other issues that you need to be aware of when looking for the best gun safe dehumidifier, even if you actually own a waterproof gun safe.

Considering the fact that many of us do not open our gun safe doors regularly, excess moisture issues can be hard to notice, and they will lead to a number of problems with your guns, ammo, and accessories.

Ammo damage: your ammunition is likely the first thing that will be damaged if the moisture levels in your gun safe are too high. High levels of humidity can reduce or even stop the performance of bullets.

Growth of Mold: Mold will grow in safe areas with a lot of moisture. These will first start growing on the foam-coated pieces attached to the interiors of the safe. Although you can safely remove mold built-up, it is always best to prevent it from occurring in the first place.

Rust build-up on guns. Even the most durable and toughest gun is vulnerable to rust problems if the humidity levels are too high. If you leave your safe’s moisture unchecked for too long, the moisture in the air will lead to rust which will negatively impact both the function and appearance of your guns.

Rusty Safe: Even if your gun safe is very durable, the moisture in the air will cause the rust to slowly eat the metal over months or years before you even notice it.

Damage to other items in the safe: Too much moisture can also lead to damage to other things such as documents, jewelry, money, and other valuables kept in your safe. In many cases, these items are far more vulnerable to damage than your firearms.

The Different Types of Gun Safe Dehumidifiers

Silica Gel Dehumidifiers

Most gun safe dehumidifiers rely on silica gel technology to absorb the moisture from the air. Silica gel is a desiccant substance that removes water from the air it touches naturally. Since they do not require electricity to operate, you can easily place silica gel dehumidifiers in a safe without needing to drill a hole for cabling.

These beads are even renewable, meaning once they’ve reached their capacity, you can plug them into the unit to dry them off. Then the cycle continues, and you can place the device back into the safe again.

These silica gel beads can be renewed every few weeks and can last for years. While they won’t make a significant dent in a large area, these beads are quite efficient at keeping the air in small spaces such as a safe moisture-free. You can also get a good idea of how humid the atmosphere is by the color of the beads.

Rod Dehumidifiers

Rod-type gun safe dehumidifiers require an electrical source to keep the air just warm enough to prevent condensation from forming on the interior of the safe. The heat from the rod models also allows the air to circulate and to keep moisture at bay.
Rod dehumidifiers are another effective choice to remove excess moisture in a small space. Not only do they work to keep your guns completely dry inside the safe, but they’re also very silent and relatively maintenance-free since they do not need to go through a recharging process. However, since they rely on electricity to work, you will need to plug it into a power source the whole time.

The Advantages of a Gun Safe Dehumidifier

Here are some of the few benefits of getting a gun safe dehumidifier for different sizes of safes:

The Best Solution

Without a doubt, silica gel dehumidifier or rod dehumidifiers work great at helping you regulate the humidity of your gun safe. While other methods are pretty decent, there is simply no substitute for using a model specifically designed to keep your gun safe or other small space moisture-free.

Effortless Operation

Using materials such as charcoal or baking soda will require a lot of effort on your part. With a dedicated dehumidifier, you can just leave it in your safe and not worry about it for weeks or even months.


Dehumidifiers are designed to help you save money in the long run; hence you don’t need to worry too much about the cost of dehumidifiers. Unlike any gun safe with dehumidifier, you must know that many desiccant dehumidifiers change color when they’re saturated and don’t even need batteries or electricity to run and are re-usable for up to 10 years.

Highly Portable

Almost all gun safe dehumidifiers are compact enough for you to move it around with ease. If you ever need to move the gun safe dehumidifier to another place, all you need is to just dismantle and mount it again.


Most gun safe dehumidifier models on the market are designed to give you many years of trouble-free service. They give gun owners peace of mind as you can count on your firearms being safe from rust and moisture even if you don’t check on them regularly.

Best Gun Safe Dehumidifiers

Now that we’ve gone through some of the different types of gun safe dehumidifiers as well as the advantages of getting one for your gun safe, here are some of the top gun safe dehumidifiers you can get your hands on now.

1. Eva-Dry E-333 Renewable Mini Dehumidifier

Best Overall Gun Safe Dehumidifier


First on our list for the best gun safe dehumidifier is the E-333 from Eva-Dry. Thanks to its usage of renewable silica gel beads, you can now reduce the humidity in your gun safe without increasing your carbon footprint. The beads in the E-333 capture airborne liquid for up to an eight-week period. Once it’s full, all you need to do is to plug the unit in a ventilated area to recharge the product.

Other than being super friendly to the environment, the Eva-Dry E-333 is entirely silent, unlike other units that require batteries to run. In terms of size, the small-sized E-333 product works to give users the advantage of fitting them into spaces other dehumidifiers simply cannot. Furthermore, the Eva-Dry E333 dehumidifier is extremely easy to operate, especially since it does not require electricity or batteries to keep your gun safes dry.

These popular tiny dehumidifiers gun safe come in the size of a car radio, meaning it is very portable. The renewable silica gel beads work through the process of absorption, where it will attract and absorb moisture through the model’s plastic front grill. To know when they’re fully saturated, you can simply take a look at the color of the silica gel dehumidifier. The silica gel beads change color from blue to pink once it is time to “recharge” the silica gel dehumidifier. The heat from the electrical unit dries out the silica beads so that you can reuse them again.

The dehumidifier manufacturer claims that the Eva-Dry Renewable Mini Dehumidifier has a silica gel canister that can reach a moisture removal capacity of 4 to 5 ounces after about 2-4 weeks of use, depending on the environmental conditions. Obviously, the dehumidifier will reach its capacity much quicker when used in humid and warmer storage conditions. Overall, the petite construction design of the Eva-Dry E-333 makes it work best in small spaces with mild moisture conditions, such as a gun safe, making it a very inexpensive solution that many owners will appreciate.

You would like this product if:

You have a smaller gun safe. This tiny unit from Eva-Dry is small enough to fit into tight, enclosed spaces as it operates without electricity and doesn’t require batteries. This tiny but powerful dehumidifier can protect up to 333 cubic feet of coverage area from moisture problems.

You want a reliable product. Not only can the silica gel beads change from blue to pink and can be re-used for up to 10 years, but the manufacturer even provides customers with a five-year warranty to cover any potential malfunction.

You might not like this product if:

You want something with high capacity. The Eva-Dry E333 relies on natural ventilation and absorbs moisture, hence the unit may have a lower capacity and performance compared to its competitors.

You don’t want to wait a long time for it to recharge. One downside to this renewable silica gel bead is that they take up to 12 hours to recharge and fully dry out before you can pop them back in the safe again.


2. hOmeLabs Compact Dehumidifier

Best Compact Gun Safe Dehumidifier

Out of all the different compact dehumidifier models available, the popular hOmeLabs brand has stood out as our favorite choice. Not only is it a trusted and reliable brand, but we believe that the compact unit makes for a perfect choice to keep the humidity level in gun safes low, but they’re also a great substitute to prevent mold, mildew, and allergens during long road trips.

With its small build and ability to extract up to 250 mL of moisture a day, the hOmeLabs compact dehumidifiers are excellent alternatives for gun safes. With a 500-mL tank, this mini humidifier can be left in the safe for a couple of days before you will need to remove and dispose of the water.

The hOmeLabs compact dehumidifier even has an effective working range of up to 150 square feet, making it the perfect size to keep your gun safe, nice, and dry. The petite size also means that you can easily transfer the rechargeable dehumidifier unit into your house to continue enjoying its benefits while you’re not traveling. It also has an indicator light to let you know when it’s time to empty the water tank.

Overall, the hOmelabs compact dehumidifier is incredibly easy to maintain and its recommended for you to clean the dehumidifier unit weekly to ensure it is working at peak efficiency all the time. Cleaning it isn’t even too much of a chore as you simply need to wipe down the surface to remove any accumulated dust.

You would like this product if:

You enjoy convenience. This dehumidifier does not only have an auto shut-off function to prevent spills, it even has a moisture indicator light that turns on to remind you when the tank is full. The large tank capacity also allows up to two days of operation without the need for draining it constantly.

You want peace and quiet. Thanks to the model’s Peltier technology, the dehumidifier operates quietly so as to not interrupt your day.

You want something that is compact and efficient. The dehumidifier utilizes a 110V power supply with two flat pin plugs (9V/2.5A) to dehumidify up to 150 square feet of area. Additionally, the compact design also makes it easy to move from the safe to different sections of the house.

You might not like this product if:

You want something that works quickly. Unfortunately, the hOmeLabs Compact Dehumidifier has a slow operation. Thus, this might not be the best dehumidifier if you need a unit to quickly suck up all the moisture in the air.

You have a large coverage area with increasing moisture. The smaller capacity means that it will not work as efficiently for larger areas and in an environment where moisture is constantly reintroduced.

3. GoldenRod 24” Dehumidifier Rod

Best Silent Gun Safe Dehumidifier


GoldenRod is one of the oldest and also the most trusted brands in the industry. The unit itself features a heated rod that is designed to provide safe use in gun safes at home. Not only that, but the GoldenRob dehumidifier is also one of the few products on the market that comes with a lifetime warranty, is maintenance-free, and has a silent operation with no moving components to keep your valuables dry.

The GoldenRob dehumidifier prevents damage to your items by employing a process that reduces the probability of condensed water vapor forming inside your gun safe by warming the air up. The unit even features vermiculite minerals to ensure even heat distribution throughout the rod for effective operation.

While the electric dehumidifier can reach a maximum surface temperature of just below 150°F/65°C, it can still be a little uncomfortable to handle with our bare hands but still not hot enough to cause any ignition with your common household material. If you plan to mount the dehumidifier, it is recommended that you do so on the floor of a storage container as the warm air will rise on top of the container and cooler air circulates to prevent condensation.

The 24-inch GoldenRod Original dehumidifier has an approximate working coverage area of up to 300 square feet with mounting brackets included with the purchase. The length of the cord is also completely customizable to reduce the chance of it snagging on anything.

The bottom line is that using a heated rod model such as the GoldenRod Dehumidifier is a very low-cost alternative for protecting your guns. The dehumidifier unit lets you control the relative humidity in the safe at 40-50% to protect your guns.

You would like this product if:

You want a silent and safe dehumidifier. Not only does the GoldenRod Original Dehumidifier have a silent operation while removing the moisture in your safe, but it has a maximum surface area of 150°F/65°C and will never overheat to make it a safe dehumidifier to keep in your home.

You want an energy-efficient unit. The dehumidifier has a very efficient operation where it is able to control the relative humidity to 40 – 50% without using too much energy.

You want a reliable dehumidifier. GoldenRod Dehumidifier provides customers with a whopping lifetime warranty on their dehumidifiers to cover any potential malfunction.

You might not like this product if:

You don’t want to handle hot materials. The dehumidifier rod has the potential to heat up to be as warm as an oven, making it uncomfortable to carry. It is best to either handle it with oven mitts on or wait for it to cool down first.

You want something sturdy. While the rods do some with support legs, they are not as sturdy as you might hope for. So, if you don’t plan on mounting your dehumidifier, it is best to look for another brand.


4. Pro Breeze Renewable Cordless Mini Dehumidifier

Best Cordless Safe Dehumidifier

Next on our list is a mini dehumidifier that looks and functions very similar to the Eva-Dry model discussed above. From sporting the same basic shape and design, this mini dehumidifier also runs on silica gel material to absorb moisture from its surroundings.

While the Pro Breeze Renewable Cordless Dehumidifier is very compact, they can cover spaces up to 333 square feet, making them ideal choices for removing moisture from closets, cabinets, gun cabinet, security cabinet, and jewelry boxes, However, thanks to their petite build, you can even use them in gun safes, drawers, bookcases, and even gym bags.

The compact electric dehumidifier uses orange silica gels that gradually turn green when they’re full of moisture. The dehumidifier even features a small viewing window on the front to indicate when it’s time to recharge the unit. With a moisture absorption capacity of up to 150 mL, these compact dehumidifiers should be able to last between 2 – 4 weeks (depending on conditions) before needing to be recharged.

One thing you need to take note of is that the unit does not come with an automatic shut-off, so the silica gels may just pop if you leave the unit running for too long. Nonetheless, the sturdy unit comes in a small size to work best in tighter spaces with poor ventilation.

Not only does the model stop mold, mildew, and wood rot from occurring, the unit comes with a built-in 110 AC power connected for easy cordless operation while the silica gel is non-toxic to ensure that the safety of your kids and pets at home won’t be an issue.

Another thing is that the Pro Breeze Renewable Cordless Dehumidifier does not have any bulky cables for you to worry about. You can simply recharge it by plugging in an electrical outlet to warm up. While the manufacturer claims that the reactivation procedure might take 8-10 hours, some users have found that they took two days for the silica gel dehumidifier to dry fully.

You would like this product if:

You want a model that is easy to use. This economical safe dehumidifier unit is very easy to use. The beads change colors to indicate that they need to recharge. The dehumidifier also has an easy-viewing indicator window for your convenience.

You want something safe to use. Not only are they ideal for small spaces, but they are also non-toxic to make it safe for pets and children at home.

You might not like this product if:

You want a lifetime warranty. Unfortunately, there are no mentions on warranty for the Pro Breeze Renewable Cordless Dehumidifier.

You don’t like to wait for a long time. While the manufacturer claims that the process might take 8-10 hours, the unit can take up to two full days to recharge.

You want something with auto shut-off. The safe dehumidifier model does not come with an automatic shut-off feature, meaning that the beads may just leak when plugged in for too long.

5. LOCKDOWN Dehumidifier Rod

Best Gun Safe Rod Dehumidifier


The LOCKDOWN model is a desiccant model that uses a bar-type heating element that can be attached to your safe to raise the air temperature inside. If mounted at a low point in the safe, the dehumidifier will radiate the heat through the entire vault interior continuously to increase and stabilize the airflow.

Featuring a quick plug attachment, the LOCKDOWN electric dehumidifier is relatively easy to install onto your safe. The rod clips to its mounting brackets easily, which are held by self-adhesive Velcro pads. However, if your home gun safes do not have power hook up, you may need to be prepared to drill holes in to feed the cable out.

Although the safe dehumidifier requires an electrical outlet to operate, once it’s plugged in, the rod is able to put out enough heat to ensure the air inside the safe is at least 5 degrees higher than the air outside to prevent condensation from forming in the interior. This unit is able to protect your ammo and weapons against rust in approximately 100 cubic feet, making it perfect for removing moisture from safes that can hold 18 – 36 guns.

Lastly, the electric dehumidifier rods are even constructed out of durable extruded aluminum and they come with a one-year warranty.

You would like this product if:

You want something that is easy to install. Featuring a quick plug attachment with mounting brackets included in the package, this dehumidifier is simple and easy to use.

You want a compact product. Available in 12-inch or18-inch models, the LOCKDOWN Dehumidifier Rod has a small build to take up little space and can service up to 100 cubic feet area.

You are on a tight budget. This is a cheaper alternative with desiccants to naturally remove water from the air.

You might not like this product if:

Your gun safe does not have a hole for wiring. Considering that this unit requires a constant power source, you may need to drill your safe for it to work.



Shopping for the best gun safe dehumidifier will require some work, and gun safes with dehumidifiers bring a significant difference in your experience. That’s why we have done the research for you and have given you our reviews on the best gun safe dehumidifiers to make your life as stress-free as possible. Hopefully, our reviews and guide here today will help you out in your next gun safe dehumidifier purchase.

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