Dehumidifier Database

Lockdown GoldenRod Dehumidifier

If you want your gun safe to be completely protected from mold, rust, and corrosion then the Lockdown GoldenRod dehumidifier is what you need.

It's the highest selling, most reviewed, and best rated dehumidifier, and it's also the one I use in my gun safe.  

The GoldenRod dehumidifier works differently than your standard dehumidifier, using a small heating element that warms to around 100 degrees, stopping condensation from gathering in the gun safe.

It works in gun safes with high moisture levels and can reduce the relative humidity to 40-50% within just a few hours. 

What I really appreciated about the GoldenRod dehumidifier was the versatility. It works in all types of gun safes and is available in a range of sizes to match the space.

The basic model will cover 100 cubic feet, but you can also get 18, 24, and 36-inch models which will protect gun safes up to 200, 300, and 500 feet, respectively.

Plus, the Lockdown dehumidifier rod comes with legs for standing operation, or the option to mount it on a wall or shelf.

The small dimensions mean it can slot in easily at the back of your gun safe and it won't block any access to your pistol racks or ammo. Unlike the PEET Dryer next on my list, the Lockdown sits horizontally.  

The only drawnback of the Lockdown dehumidifier rod is that it does need an electrical outlet for the plug attachment to connect to.

Some safes come with a pre-drilled anchor hole on the outside, but you might still need to drill through the upholstery yourself.  

The Lockdown dehumidifier is a quality product that can be used anywhere (I'm literally yet to find a gun safe it doesn't fit in).

It does need an electrical outlet, but connecting it to your mains is a small price to pay to keep your guns and ammo dry and secure year-round. 

PEET Dryer

Garages deal with higher levels of humidity, and garage gun safes need a good quality dehumidifier to manage the moisture.

The PEET corner stand dehumidifier is the best gun safe model for garages because it's easy to install, simple to use, and makes basically no noise.

This means you can leave it running constantly to protect your firearms without giving it a second thought. 

Unlike the Lockdown GoldenRod, the PEET dryer has a sturdy corner base, so it must be placed vertically. 

The PEET dehumidifier uses convection to protect against humidity. Cooler air is drawn into the bottom of the device, warmed, and then released from the top.

This slightly warms the gun safe and protects from mold and mildew, rust, and corrosion.

This simple, but effective, operation makes it one of the best gun dehumidifiers to use in a hot garage where humidity levels will be higher.

The heat controlled circulation protects a larger area than other dehumidifiers, and it can manage more moisture.

As well as being effective, the PEET gun safe dehumidifier is efficient as well. The low energy draw means it will only cost you about as much as an incandescent bulb does each year. 

Dry-Packs

The Dry-Packs rechargeable dehumidifier is the best choice for any gun owners who don't have an electricity source nearby, and this is the option I typically recommend to folks who aren't interested in making a DIY dehumidifier. 

These desiccant dehumidifiers work without power and can be used again and again for years to come - giving you simple and effective dehumidifying.

Dry-Packs desiccant dehumidifiers work using canisters which are about 6 inches tall. These are large enough to absorb moisture, but also small enough to fit in most gun safes with ease. 

The canisters are filled with two types of silica beads. The white beads make up the bulk of the canister and are not dyed nor contain cobalt, which is a skin and respiratory irritant. They absorb about 60% of their weight in moisture.

The orange colored beads are there as an indicator to recharge.

When the colored beads turn dark green, it means it is time to recharge the canister. You do this by baking them directly in your oven or convection oven. Do not use in the microwave, though!

Depending on the temperature and relative humidity, the recharge takes between 3 and 6 hours per canister.

Baking at about 275 to 300 degrees will dry out the beads and return the indicators back to orange. Once cooled, you can place them back in the safe. 

One drawback of this dehumidifier is that there's no warranty. However, desiccant dehumidifiers have fewer parts than one's like the PEET dryer, so it's less likely that there will be an issue with the mechanism anyway.

I would still thoroughly check the device when you get it though and return within 30 days if you aren't happy. 

These desiccant dehumidifiers aren't designed for larger gun safes that suffer from very high humidity.

However, if you have a small gun safe and want to protect your firearms without doing any wiring, then this is one of the best dehumidifiers for you. 

Eva-Dry Liberty Safes

If you want protection at a great price, then the Eva-Dry rechargeable dehumidifier will work well for you. It's compact, portable, and child friendly, so while it works well in a gun safe you can also use it in other areas of your home, such as a linen closet.

This Eva-Dry dehumidifier uses water glass technology crystals instead of traditional silica. This is an improvement on the Eva-Dry E-333 and means it can absorb more moisture, more quickly. 

HVAC technician Francis Kasper from Chill Brothers says, "What I like best is that it’s renewable: once it’s full, just plug it in to dry out, and you’re good to go again. It’s also really reliable."

Just make sure all the beads have changed back to orange before you place the dehumidifier back in the gun safe. 

What I like most about this dehumidifier is how simple it is. There's no batteries, no power cords, and no attachments of any kind. You just put it in the gun safe and let it get to work.

It's also portable and lighter than the Eva-Dry E333 (weighing just 1 pound!) so you can easily move it between rooms.

The only downside of this Eva-Dry rechargeable dehumidifier is that it isn't the most powerful. There's no fan to encourage air flow, and in larger gun safes, you will be better off using a dry rod like the MAXSafe dehumidifier instead. 

However, if you have a small gun safe then this dehumidifier offers a nice way to protect your guns and ammo. If simplicity is top of your list, then this gun safe dehumidifier is definitely one to consider. 

Hornady Rechargeable Dehumidifier

Small gun safes don't need massive dehumidifiers, and a lot of the time simpler is better. The Hornady rechargeable dehumidifier is as simple as they come as it can just be placed directly in the gun safe to start removing immediately. 

It offers a way to protect your firearms from mold and rust without having to be hands on at all. 

The Hornady dehumidifier is similar to the Eva-Dry, but uses silica gel beads instead of water glass crystals. 

They attract moisture from the air and draw them into the dehumidifier. This stops condensation and humidity from gathering, protecting your guns and ammo. 

The sleek box is well designed with a stylish red and black look that won't stand out in your gun safe.

There are several mounting options and you can lay this box flat on the floor or shelf of your safe, prop it up in a corner, or use the included quick-connect mounting bracket.

This lets you maximize your space while managing the humidity. 

The best feature of this silica gel dehumidifier is the rechargeable beads. 

Just like the Dry-Packs canister, when the beads change color it means it's time for them to be dried out. With this dehumidifier, you can do this by plugging it in.

This usually takes about 10 hours, but can take up to 24 hours for all the beads to turn blue. 

There was an issue with the original run of this model that the internal wires around the plug area would come loose, which could allow the silica beads to fall out.

This has been addressed by Hornady, but the dehumidifier does have a 1-year warranty so don't be afraid to ask for a replacement if you notice an issue. 

Despite a few minor issues, this dehumidifier is one of the best rechargeable desiccant dehumidifier for gun safes.

It fits in easily, looks good, and works well. It won't lower the relative humidity as effectively as an electric dehumidifier, but for the price it offers some excellent value. 

MAXSafe Dry Rod Dehumidifier

This is another dry rod dehumidifier that I recommend, especially if you're looking for a low-maintenance, long-lasting solution for larger gun safes. 

The MAXSafe Dry Rod uses gentle radiant heat to keep humidity at bay and prevent condensation from forming inside your storage space.

Compared to the LOCKDOWN Dry Rod Dehumidifier, which is a bit more well-known, the MAXSafe offers the advantage of being ETL certified, giving it an edge in tested safety compliance.

You’ve also got flexibility with the MAXSafe model—it's available in three lengths: 12", 18", and 24", which makes it easy to fit into a variety of safes or storage cabinets.

Whether you're outfitting a tall rifle safe or a more compact handgun vault, there’s a size that works without wasting space.

The unit is listed to be effective in areas of up to 200 square feet, making it a solid pick for larger gun safes, walk-in vaults, or even small rooms. 

I've personally installed this MAXSafe rod in a linen closet and a pantry, and it's worked well to prevent musty smells and keep items dry and fresh.

Installation is simple—just mount it horizontally along the bottom of your safe or lean it along the back wall, plug it in, and it’ll quietly do its job without any ongoing maintenance or refills.

If you're after something that's powerful, scalable, and safe for multi-use environments, the MAXSafe is an excellent pick that goes beyond just firearm storage.

Eva Dry E-333

The Eva-Dry E-333 is a compact, rechargeable desiccant dehumidifier that’s ideal for tight spaces—and a favorite in the gun safe community for good reason.

It’s a similar style to the Eva-Dry Liberty Safes model, but with a few useful differences that make it more versatile for everyday users.

One standout feature is the built-in hook, which makes it especially convenient to hang inside a gun safe, closet, or even in vehicles like cars or boats.

This adds flexibility over the Liberty model, which has a flatter profile and is better suited for shelves or horizontal placement.

The E-333 uses moisture-absorbing crystals that pull humidity from the air and lock it into the unit.

Based on my experience, it typically lasts around 20–30 days before needing a recharge. 

The window on the front turns from orange to green to let you know when it’s time to plug it in and dry out the beads—simple and effective.

However, if you're storing this in a location you don’t check frequently, it’s easy to forget about.

Since there's no alarm or automatic alert, I recommend setting a phone reminder every few weeks to check the indicator. If left unchecked, moisture levels can sneak back up before you notice.

Lightweight, silent, and mess-free, the Eva-Dry E-333 is a solid low-maintenance choice for protecting not just your firearms, but also any space that’s prone to moisture buildup.

SnapSafe Safe Dehumidifier

If your gun safe needs constant dehumidification then your best option is a to choose a long lasting model.

This SnapSafe canister dehumidifier is well made, durable, and can stand up to prolonged use, making it one of the best gun safe dehumidifiers for everyday use. 

This canister has a 5-inch diameter, and like the Dry-Packs canister, it will indicate through color changing beads when it is time to recharge.

What I really like about this dehumidifier is that it recharges fast. It only takes about 2 hours in your oven (at 300 degrees), the silica gel beads will be ready to absorb more moisture from your safe.

The rechargeable dehumidifier will only need to be dried out about once a month too. You will need to check the indicator beads to make sure, but unless there's a lot of humidity it shouldn't need to be recharged very often. 

This dehumidifier comes with a lifetime warranty and the silica gel beads used within it will generally last forever. All of this makes it one of the most durable dehumidifiers, and it really can last a lifetime.

The only drawback is that research has shown that desiccant dehumidifiers won't pull as much moisture from the air as electric models. In small spaces it offers great value for money, but in larger areas it may not provide enough protection. 

However, this reliable unit offers long term protection and peace of mind that your ammo and firearms will stay in good condition.

SnapSafe is a subsiduary of Hornady, so it's no surprise that their gun safe dehumidifiers are high quality too. 

Can I make my own DIY gun safe dehumidifier?

Yes, you can make a DIY gun safe dehumidifier but it isn't recommended. Most DIY dehumidifiers will be less precise and may not provide enough protection to your firearms and ammo so it's usually best to use natural methods or buy a dehumidifier specifically made for gun safes.

How often should I change my gun safe dehumidifier?

Generally, gun safe dehumidifiers will last 5-15 years, but this varies depending on the type you use. It the dehumidifier stops working or won't recharge properly anymore then you should replace it. 

How do I charge a rechargeable gun safe dehumidifier?

Recharging a gun safe dehumidifier usually involves heating the silica gel or beads to dry them out.

You can usually do this manually by baking the beads in the oven, but if it has an electric recharging heat plate then you can just plug it in to an electrical outlet.