Best Dehumidifier For Gun Safe In Garage

Gun safes provide us with added security. It keeps them away from little hands, and safe in the event of a burglary. 

With more of us opting to put our gun safes in the garage, moisture becomes the new threat.

As a garage is generally less insulated than the rest of your house, meaning damp, moist guns are a real possibility. Grim, I know.  

Dampness and moisture can lead to rust and corrosion, rendering your pistol useless. A way to avoid mildewed guns is a dehumidifier for your gun safe. There's a wide range out there, and knowing where to start is one heck of a task! 

Luckily for you, the hard work has been done. The internet has been combed, and we give you the best dehumidifier for gun safe in the garage right here! 

Check out our buyers guide for tips on what to look out for and our FAQ section to answer your queries! 

Top Pick: 

In a hurry? Check out our top pick to get you on your way quickly!

Top 5 Best Dehumidifiers for Gun Safes In Garage


Up first is Lockdown’s Goldenrod dehumidifier. Those after an affordable dehumidifier should check this one out. 

Coming with a lifetime warranty, you’ll never find yourself worrying about this little beauty! 

It comes with handy mounting brackets, making the wall installation simple and easy. 

You get a choice of 4 sizes with this dehumidifier: 12, 18, 24, and 36 inches, meaning you are bound to find one that fits your gun.

The larger 36-inch dehumidifier will cover up to 500 cubic feet, whereas the smaller 12-inch will cover up to 100 cubic feet. 

It's diverse and is even suitable for your basement as well as the garage, so should your gun safe ever move, you don’t need to buy another dehumidifier! 

The electronic dehumidifier works well to eliminate moisture, mold, mildew, and condensation in the safe. 

It also produces heat and works against rust and corrosion which can seriously damage your guns. 

As it produces heat, it can become quite hot, so it is worth taking care of when opening the safe door to avoid touching it.

Although Lockdown says it should not cause any burns, it’s always better to be on the safe side!

Some customers found the provided mounting brackets to be of cheap construction, it’s worth taking care when installing, or opting for other brackets if you are concerned about their performance. 

The dehumidifier works to keep the humidity level between 40-50% and the temperature between 70-80 degrees. These are viewed as acceptable humidity and temperature levels to avoid excess moisture in the safe. 


  • Affordable
  • Lifetime warranty
  • Multiple sizes available 
  • Easy to install 
  • Works well to eliminate moisture, mold, mildew, and condensation


  • The mounting brackets for installation are cheap


An affordable option for those looking for a dehumidifier that does not run on any electric. 

The Eva-dry comes with built-in heating elements and is rechargeable and reusable. 

Using silica gel beads, this desiccant model absorbs any moisture in the air. Though listed as non-toxic, it’s best to keep away from children and animals (along with the rest of the gun safe for maximum safety!). 

The dehumidifier can absorb between 4-6 oz of moisture covering up to 333 cubic feet of space. 

It can reduce the relative humidity level by 16%, taking 65% humidity down to 56% in 12 hours. 

The run time of this dehumidifier can vary based on how often you open and use the safe. Generally, you will get anywhere from 20-30 days usage, but some customers did manage to get 40 days. 

The dehumidifier also features an indicator window where you can see the color of the absorption beads change. Once complete, they will change from yellow to green. 

To recharge the dehumidifier, it can be plugged in and charged, although it’s worth knowing this can take a while. 

You get 10 years of use out of this dehumidifier without needing to be changed, making it great value for money. 

Those with larger safes can buy a double pack of this dehumidifier to cover the whole space. 

For the best use, place this dehumidifier at the top of the safe. 


  • Doesn’t use electric 
  • Affordable 
  • Can last for 10 years
  • Clear indication window 
  • Reduces humidity in 12 hours


  • Takes a while to recharge 


Another great choice from Lockdown is this rod dehumidifier, which works to keep the humidity level between 45-55%. 

The dehumidifier comes in two sizes, 12 and 18 inches. 

This electric dehumidifier can get hot, but not so hot that it will burn the material. Still, it is best to avoid contact where possible! 

What’s great about this dehumidifier is it does not need to be placed in a specific place in the safe, as long as you have access to your mains power for this electric dehumidifier. 

Described as the best budget dehumidifier on the market, it comes with mounting brackets for easy installation. 

Some customers did find the plug to be poorly made and swapped it out, something to consider before purchasing. 

The dehumidifier comes with no assembly required and a 1-year warranty to provide peace of mind when using. 


  • Easy to install 
  • Affordable 
  • Safe for prolonged use
  • Can place anywhere in the garage
  • Keeps humidity between 45-55%


  • Plug with the unit is not the best


Silica gel technology is used to eliminate moisture in your safe with Pro Breeze’s dehumidifier. 

The gel beads used are described as non-toxic, but it is still best to keep them away from children or animals. 

This rechargeable dehumidifier doesn’t run on electricity and is more reliable than other brands. Although this dehumidifier does need to be regularly monitored, not too bad if you regularly use your safe. 

With its indicator window, you can watch the gel turn from orange to dark green until the absorption is complete. 

To recharge, this is plugged in, although it can take between 8-10 hours to achieve this. 

Pro Breeze offers a reusable and easy to use affordable dehumidifier. 


  • Easy to use 
  • No need for electric to use 
  • Indicator window 
  • 20-30 days on a single charge 
  • Non-toxic silica gel beads


  • Takes 8-10 hours to recharge 


PEET’s dehumidifier uses the same trusted method to eliminate moisture that's been used for decades. 

The dehumidifier can be set-up in the corner of the safe, cabinet, and closet easily making it one diverse dehumidifier. 

It works to keep the humidity level at 40-55%, the acceptable level for a moisture-free safe. 

PEET’s is a good alternative to other electrical dehumidifiers, particularly those in coastal areas and garages. 

The dehumidifier provides a quiet removal of excess moisture, helping to prevent damp and mildew in the safe. 

The safe works well with up to 80 cubic feet of space and uses less electricity than a standard light. Great news for those looking to avoid a hefty electricity bill! 

It comes with a 5-year warranty providing you with peace of mind while it's in use. 

Thanks to not needing to be hung, it's an easy installation. 

Its larger size may make it difficult to fit into fuller safes so be sure to check the measurements before you purchase! 


  • Easy to install 
  • Uses less electricity than other dehumidifiers 
  • 5-year warranty
  • Can fit into the corner of safe 
  • Quiet removal of excess moisture


  • The larger size may make it difficult to fit in fuller safes

Best Dehumidifier for Gun Safe in Garage Buying Guide

Not sure what the best dehumidifier for your gun safe in the garage?

Check out our handy buyer’s guide to find out what to look out for and make that decision easier for you! 


There are two main types of dehumidifiers for gun safes: desiccant and electric.

For those beginners, or needing a refresh, let's look at what they do: 

Desiccant Dehumidifiers

A desiccant dehumidifier absorbs the excess moisture in the air by using beads. These are usually filled with silica gel packets. The gel absorbs a set amount of moisture (labeled on the product description) before recharging. 

The recharging process involves heat to vaporize the water that's been absorbed. Some will be plugged in to produce their heat, whereas other dehumidifiers can be popped in an oven to recharge. 

It should clearly say on the dehumidifier which process to follow. 

Desiccant dehumidifiers are easy to install without having to worry about a power source, you can put them in the safe and carry on with your day. Some may explicitly say to be put at the top of the safe for example, but this will be made clear to you on the instructions. 

As they don’t use any electricity, they are cheap to run and usually cheaper than an electric model too. 

They can be recharged for years before needing a replacement, generally, 10 years is considered good mileage on these types of dehumidifiers. 

Electric Dehumidifiers

Electric dehumidifiers have gained popularity in recent years, viewed as superior dehumidifiers by some. They use heat to evaporate the excess moisture in the room. This is done by an exposed heating element to dry the air, thus removing the excess moisture. 

The installation of these can be tricky as they need to be connected to your mains power. To do this, you often need to drill a hole in the gun safe to run power cords through. 

You can get a battery operated dehumidifier, but this will require more attention. Generally, these are only suitable for those regularly using their gun safes. 

When using an electric dehumidifier you will need to be mindful of the temperature of your gun safe. Most of these heated rods can get quite hot, which could make your guns and bullets to handle. 

When deciding which to opt for, consider how often you will be using your gun safe, as both electric and desiccant dehumidifiers will need to be checked on. Whichever you decide, you can find some great prices on either option, making them great for any budget. 


Before you get your dehumidifier you’ll need to measure the area of your gun safe. 

Most dehumidifiers work with cubic feet, you’ll need to work the measurements out with that. It is done easily by multiplying the length, by width, by height, which will provide you with the area in cubic feet. 

The bigger your gun safe is the more absorption capacity your gun safe will need. 

Absorption Capacity 

The absorption capacity of the dehumidifier is an important factor to make sure it's going to take enough moisture out of your air. 

This is normally given in oz of water and will be detailed on the product description, so be sure to check this carefully. 

Those opting for an electric dehumidifier won’t need to worry about this, as they generally operate with heat instead of absorption packets. 

How it Performs 

In terms of performance and longevity, an electric dehumidifier is a better option than the desiccant based ones. 

Although it will require being connected to power, an electric dehumidifier will last longer and be more effective at removing moisture and condensation in the safe. 

The choice is ultimately yours, but those looking for better performance should strongly consider an electric dehumidifier for their gun safe. 


Making sure the dehumidifier is going to cover the area of your gun safe is another important factor. 

Similar to the absorption level this should be located on the product description. The length of the rod (usually on electric dehumidifiers) will correlate to how much area the dehumidifier will be able to draw excess moisture from. 

Below is a table showing the conversion. Remember this is a rough guide and to check on the product description before purchasing to make sure it’s suitable. 

Dehumidifier Rod Length
Coverage area in cubic feet (approx.)
12 inches
18 inches 
24 inches
36 inches 


Once you have measured the size of your gun safe, found the absorption capacity out, and the coverage, the size of the dehumidifier itself is another factor to consider. 

You can find some nifty ones to fit smaller spaces, or fuller safes without taking up too much space. 

Ones that can be attached to the walls are great for those who want to preserve floor space, especially desiccant dehumidifiers which can be placed virtually anywhere. 

Safe and Easy?

Compared to an electric dehumidifier, a desiccant based dehumidifier is safer and easy to use. It removes the need to drill into your safe to connect your dehumidifier to power, or any batteries, you can simply hang it in the safe. 

Most dehumidifiers will come with a warranty now, giving you peace of mind while you use it. Be sure to check how long the warranty is when you purchase, and keep that proof of purchase safe, just in case you ever need to use it! 

Frequently Asked Questions

Some last-minute questions you need answering?

Stick around and check our FAQ’s out! 

How does a gun safe dehumidifier work?

Gun safe dehumidifiers are made to remove moisture, mold, mildew, and condensation from the safe. 

There are two types used: electrical and desiccant based, that we looked at in our buyers guide earlier. Be sure to check that out to help you figure out which is the best fit for you! 

Generally speaking, a desiccant dehumidifier uses silica gel beads to absorb the moisture from the air and will need recharging once full. 

An electric dehumidifier uses heat to evaporate the excess moisture in the air but will require batteries or a constant source of mains power to do this. You can find either option for an affordable price by checking out our earlier recommendations. 

Consider which the best fit will be for you and your gun safe before investing. 

Can I put my gun safe in the garage?

Providing there is enough security, then yes using your garage for your gun safe is perfectly fine. Ensuring the safety and security of your garage is key here, as well as the lower humidity level of the garage. 

If your garage is visible from the outside, you run the risk of a burglar trying their luck. To ensure safety, consider bolting the gun safe to the concrete floor. You can also invest in an alarm system. 

The gun safe in your garage will provide you with easy access and makes it easy to install. They are also kept far away usually from the kitchen and any fire damage is greatly reduced. 

However, there is often excess humidity in the garage (which is why we are here looking at dehumidifiers) and the risk of it being stolen, especially if the garage is visible to others. 

Providing that you take these security measures and invest in a dehumidifier, you can keep your gun safe in the garage relatively trouble-free. 

Can a gun safe be too dry?

While we are so focused on getting the moisture out, asking if the gun safe can be too dry is a valid question. 

The short answer is yes, as areas too dry can cause wood and steel damage. The best humidity level to have in your gun safe is between 40-50%, which as you will have seen, our recommendations of dehumidifiers will deliver this. 

If you are buying a dehumidifier to remove excess moisture in your gun safe, the air being too dry should not be an issue. 

If you are concerned, a hydrometer will tell you the precise humidity level of your gun safe so you can keep track and adjust where necessary. 

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