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Best Mold Foggers of 2021

Updated
Say goodbye to pesky mold growth!

Mold is one thing that almost no one is a stranger to. This multicellular fungus relies heavily on moisture and somehow makes its way everywhere. It shows up in different places both indoors and outdoors as long as sufficient moisture is available.

As well as being a danger to your health and your home, mold is a terrible eyesore. It’s not uncommon that it defaces anything it grows on. It also stinks up the place with a musty smell that will have you wrinkling your nose in disgust.

Mold is certainly not something you want in your home. So we’ve taken it upon ourselves to find the best mold foggers on the market to help you get rid of it.

Our Top Picks

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Model
Product Comparison Table
Features

Product Image of the The Nix Co. USA 12L Fogger Machine-110V Backpack Fogger Portable ULV Fogger Electric Atomizer Sprayer, Mosquito, Bug, Flea, Roach, Insect Indoor Outdoor Sprayer USA Company
Best for Mobility
The Nix Co. Disinfectant
  • Indoor and outdoor use
  • Quieter than gas-powered machine
  • Easy to use
Product Image of the Smith Performance Sprayers 190443 Professional Pest Control Electric Thermal Fogger, Black
Best for Dry Fogging
Smith Performance Sprayers
  • Dry fogging
  • Ease of use
  • Controlled heating
Product Image of the Mold Fogger, 1 gal.
Best for Large Areas
Concrobium Mold Control Fogger
  • Pretreating building material
  • Gets in hard-to-reach places
  • Robust unit
Product Image of the Professional Mosquito Control Fogmaster Tri-Jet 6208
Best for Smaller Spaces
Fogmaster Tri-Jet 6208 Fogger
  • Small and portable
  • Oil and water-based solutions
  • Ultra quiet
Product Image of the Tri Jet ULV Non Thermal Fogger
Most Versatile Mold Fogger
Tri Jet ULV Non Thermal Fogger
  • Five year limited warranty
  • Great for crawl spaces
  • Safe and effective

Why Should You Remove Mold?

Mold is one of the worst things to find growing in your home. It develops so fast that you might not even notice it until it becomes a problem you can no longer ignore.

Apart from its unpleasant appearance and smells, mold can also be hazardous to your health. Therefore, it’s vital to eliminate mold and mildew from your living space as soon as you notice it.

1. Health Hazard

Granted, not everyone is sensitive to mold. However, those with allergies will face many health challenges of varying degrees of seriousness.

Mold reproduces by releasing microscopic spores that float around in the air before finding a place to rest. These spores can trigger allergies and lead to things like eye irritation and throat irritation. In some cases, skin irritation may even result.

Those with preexisting health issues, such as chronic lung disease, can end up with more severe problems like lung infections. Mold spores can also trigger asthma attacks for asthmatic patients.

Children and pets are also much more sensitive to mold spores and can end up with respiratory problems when exposed to it (1).

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2. Structural Damage

Like all living things, mold needs nutrients to grow. It gets these necessary nutrients by feeding on organic matter.

Organic material is present in almost everything, from wood to clothes to drywall. Add to this some moisture, which is present in different areas of the home, and you have a perfect environment for mold growth. As such, mold has no difficulty spreading around homes.

While this is a good thing for the mold, it’s terrible for us. Having mold feed on various materials throughout the home leads to this material getting stained or destroyed.

If mold grows in your walls and floors, before long, they will begin to rot and fall apart. This is because the mold is literally eating into them (2).

If allowed to fester for long, mold can very well render a whole building structurally unsound and unfit to live in.

What Is a Mold Fogger?

A mold fogger is a device that turns mold remedial solutions from liquid to fog. While one could put such mold-killing solutions into spray bottles and mist the affected areas, foggers are more effective.

A mold fogger — by turning mold killing solutions into vapors — evenly distributes the solution. As such, it covers every single inch of the room, including the cracks and crevices we cannot reach manually.

It works by using heat to vaporize the liquid solution, which fills the room with a thick fog. Or by what is called “cold fogging,” which simply uses air pressure to vaporize the solution.

The solution will kill mold and mold spores that you can’t see. Damaged material then needs to be removed afterward to prevent the mold from returning.

Types of Mold Foggers

There are two types of foggers: thermal foggers and ultra-low volume foggers.

Thermal Foggers

Product Image of the Smith Performance Sprayers 190443 Professional Pest Control Electric Thermal Fogger, Black

A thermal fogger uses heat to vaporize chemical solutions. The heated barrel helps to produce tiny particles in large numbers, making a fog or cloud that can reach into cracks.

They often have a tank that can carry up to 40 ounces of solution with a pump that transports the solution to the heating chamber. The vapor is then expelled from the front with a nozzle.

Pros

  • Release thick and visible clouds, which enable you to see what you’re doing.
  • The size of a droplet in the released cloud can be as small as 0.5 microns, so it can penetrate small areas.
  • Use less solution to cover more areas than ULV foggers.

Cons

  • Require high energy to function.
  • There is a risk of fire because of the use of heat.

Ultra-Low Volume Foggers (ULV)

Product Image of the The Nix Co. USA 12L Fogger Machine-110V Backpack Fogger Portable ULV Fogger Electric Atomizer Sprayer, Mosquito, Bug, Flea, Roach, Insect Indoor Outdoor Sprayer USA Company

Also known as a “cold fogger,” this device uses air pressure to turn chemical solutions into a mist, which is then sprayed.

With ULV sprayers, you can adjust the size of the particles for different applications.

Pros

  • Easier to operate.
  • Energy-efficient.
  • Safe to use indoors.

Cons

  • Release invisible fog, making it hard to see what you are doing.
  • Large droplet sizes ranging from 5–30 microns — less effective in penetrating cracks.
  • Take longer to cover large areas compared to thermal foggers.

Why Should You Use a Mold Fogger?

When you finally notice mold growth anywhere, sadly, it’s only the tip of the iceberg. Mold spores are microscopic, which means that you don’t see them.

Also, since mold spores are in the air, using a spray bottle is ineffective. It will definitely not kill them all.

To exterminate them, therefore, you must evenly distribute the mold-killing solution. This ensures that it fills the room, including the air where mold spores might be.


The Best Mold Foggers of 2021

We’ve taken the time to look over the top products the industry has to offer. In our search, we also reviewed customer feedback from the public. As a result, we have come up with a list of the best mold foggers to help make shopping easier for you.

The Nix Co. Disinfectant Backpack Fogger

Best Mold Fogger for Mobility

This portable backpack fogger is one that you can rely on. It has a 16 to 26-foot spray range, so it’s suitable for smaller places, but you can use this outdoors, too. This versatile mold fogger is great for controlling mold and mildew, as well as a variety of other things.

For example, you can use this to disinfect hotels, schools, homes, theatres, malls, hospitals, and much more. It’s designed for indoor fumigation. However, it’s also designed for pesticides outdoors in yards, gardens, greenhouses, and farms.

You can also use this to water fruit and flowers. It’s an all-in-one product that you’ll get a lot of use out of, whether you’re using it personally or commercially!

When you’re using it, you’ll be thankful you purchased such a comfortable and lightweight option that is easy to wear for a few hours at a time.

Why We Love It

Indoor and Outdoor Use

As mentioned, this is a top choice for its indoor and outdoor capabilities. Whether you’re disinfecting, sanitizing, or even just watering items — you can use this wherever you go!

Quieter Than Gas Powered Machines

Wearing this backpack is a breeze, not just because it’s comfortable and lightweight. It’s also quiet, which is a huge bonus when you’re using it for a few hours at a time. It uses a low volume sprayer with an adjustable flow rate which saves you time but also minimizes noise.

Easy to Use

Even for beginners, this is a good product to start with. It’s easy to dilute your solution according to the product label with this tank. It comes with markings and a funnel so can easily fill it up without heat, exhaust or loud noises. Of course, you should use PPE when applicable since residual liquid can rise afterward which can lead to irritated skin, respiratory issues or other problems depending on your solution.

Keep In Mind

Cord Could Be Longer

Some customers find the cord to be too short for every situation. The cord is 10 feet long which does provide some limitations, especially in bigger rooms.

Additional Specs

Attachments Included ULV cold fogger
Item Weight 8 pounds
Tank Size 3 gallons
Particle Size 0 – 50 microns

Smith Performance Sprayers FT982 Electric Thermal Fogger

Best Mold Fogger for Dry Fogging

This fogger will easily blow you away. It’s an electric thermal fogger that runs on a 110-volt power supply. It easily fogs any material suitable for thermal fogging — be it oil-based or water-based.

The Smith Performance Sprayer also has the ability to create a dry fog. This means that the microscopic particles it produces won’t leave behind moisture. This means you can fog without fear of moisture pooling anywhere.

It’s very easy to use. You’ll find a trigger under the handle to turn it on and off and a knob to easily activate dry fogging. This is super comfortable as you can operate with the same hand you carry the fogger with.

Its durable aluminum container can hold up to 0.75 gallons of solution at a time. This comes with latches for extra security and to avoid tipping.

The device heats up pretty quickly. You can get it working right after preheating for a minimum of two minutes and still get it working right.

Why We Love It

Dry Fogging

It’s a wonderful feature to be able to fog without having moisture pooling at the nozzle. With the dry fog, you don’t have to worry about moisture showing up in puddles on the floor or dripping down walls.

Ease of Use

This fogger is incredibly easy to use with its well-placed controls and simple, one-structure build. This allows you to use it with one hand easily.

Keep In Mind

Careful Handling

The Smith Performance needs to be handled with the same care as needed for a hot kettle. It should not be allowed too close to the body, or it could cause a slight burn.

Extension Cord

As this is an electric fogger, there is the problem of an extension cord. This needs to stay plugged in, which means you’ll have to drag the cord around to keep it powered and running.

Additional Specs

Type Electric thermal fogger
Item Weight 6 pounds
Tank Size 0.75 gallons
Particle Size 10 – 50 microns

Concrobium 200-620810 Mold Control Fogger

Best Mold Fogger for Large Areas

The Concrobium is a popular well-built, sturdy model which can cover over 400 square feet in a single application.

It comes with a concise list of instructions on how to use the device. Use alongside Concrobium Mold Control Formula to effectively eliminate and prevent mold without harmful chemicals.

Using the cold fogging method, this device creates a very light and even mist. The generated mist sufficiently covers the room it’s being used in. It’s amazing for indoor use, shooting the spray as far as 20 feet out.

Why We Love It

Pretreating Building Material

Due to its ability to create fine mists that can permeate surfaces, this fogger can be used to treat building materials. This makes it even more difficult for mold to take root in a building.

Gets in Hard-to-Reach Places

This fogger does all the hard work with its 20-foot spray. It can reach all the difficult places without your moving the fogger.

Keep In Mind

Could Have Damaged Nozzles

While this is a great fogger, some reviewers report that the nozzle arrived damaged. In this instance, you would need to call the company for a replacement.

Additional Specs

Type ULV cold fogger
Item Weight 8 pounds
Tank Size 1 gallon
Particle Size 10 – 30 microns

Fogmaster Tri-Jet 6208 Fogger

Best Mold Fogger for Smaller Spaces

The Tri-Jet 6280 is a durable product you can rely on. Made by Fogmasters, it’s outfitted with vinyl tubing and brass valves. The body is made of sturdy aluminum.

This device uses the cold fogging mechanism, meaning that it can use either oil or water-based solutions.

It has three counter-rotating nozzles that spray a fine mist of solution, which goes up to 25 feet. This makes it better suited for smaller spaces. The powerhead can be adjusted to the angle required.

Although this fogger works great both outdoors or indoors, you may have to move around with it a lot. This is because it’s rather small and can’t shoot long distances.

Control it with a timer, and don’t worry about the solution running out as it can run dry without damage. The Fogmaster has an adjustable flow rate to keep you in control of the misting and comes with a five-year warranty.

Why We Love It

Small and Portable

This fogger is small and doesn’t take up much space. It’s not very heavy and can be carried from room to room easily. Therefore, you can store it and use it regularly without stress.

Compatible With Oil and Water-Based Solutions

This is a cold fogger, so it doesn’t restrict you to water-based solutions. You can put in an oil-based solution and it would make a fine mist all the same without causing problems for the machine.

Keep In Mind

No Hose Attachment

This fogger doesn’t have a hose attachment, so you cannot direct the flow of the mist. If you want to direct its flow, you would need to move around with the fogger.

Additional Specs

Type ULV cold fogger
Item Weight 12 pounds
Tank Size 1 gallon
Particle Size 15 – 30 microns

Tri Jet ULV Non Thermal Fogger

Most Versatile Mold Fogger

Finally, we have a product from Createch USA, a leader in the fogging and atomizing industry for the past 30 years. It’s perfect for the application of mold and mildew control products, as well as pest control in a variety of settings.

It’s an ultra-low volume fogger — perfect for spraying either oil or water-based solutions. It has such a powerful motor that it can spray up to 30 feet.

Its anatomy consists of an intake filter, a power cord, a heavy-duty motor and a triple action nozzle. Last, but not least, it also comes with a five-year limited warranty.

Why We Love It

Easy to Use

This fogger is incredibly easy to use with a simple on/off toggle switch. Once you turn it on, it jets the mist away from you, giving you plenty of time to leave the area.

Great for Crawl Spaces

It’s ideal to use this fogger for crawl spaces. All you need to do is turn it on directly facing the opening of the crawl space. The powerful motor will jet the mist up to 30 feet in.

If this is not enough, you can still go around to the opening on the other end of the crawl space and repeat the action. The mist circulating will take care of whatever is left in the middle.

Keep In Mind

Not Easy to Carry Around

This fogger is not the best for fogging on the go unless you have it in a vehicle. It is best used in one spot as it can be cumbersome to carry around.

Additional Specs

Type ULV non-thermal fogger
Item Weight 13 pounds
Tank Size 1 gallon
Particle Size 15 – 30 microns

Mold Fogger Comparison Chart

Product Best Attachments Included Item Weight Tank Size Particle Size
The Nix Co. Backpack Fogger Mobility ULV electric fogger 8 lbs 3 gal. 0 – 50 microns
Smith Performance Sprayers Dry Fogging Electric thermal fogger 6 lbs 0.75 gal. 10 – 50 microns
Concrobium Mold Control Fogger Large Areas ULV cold fogger 8 lbs 1 gallon 10 – 30 microns
Fogmaster Tri-Jet 6208 Fogger Smaller Spaces ULV cold fogger 12 lbs 1 gallon 15 – 30 microns
Tri Jet ULV Non Thermal Fogger Versatile ULV non-thermal fogger 13 lbs 1 gallon 15 – 30 microns

How to Use a Mold Fogger

Mold foggers are easy to use. Once you understand how they work, you should have no trouble operating them.

  1. Properly clean the room you plan to mist with the fog first.
  2. Make sure that you remove anything that could end up damaged if they get damp, such as books and fabric.
  3. Put your chosen mold-killing solution into the tank of your mold fogger.
  4. Set the flow rate you prefer on the fogger.
  5. Place your fogger in the ideal position for spreading the fog all over the room. The center of the room is typically the best place for this.
  6. Turn on your fogger and run it for as long as you may feel is necessary. Just ensure it’s not long enough for the vapor to leave puddles or run down the walls.
  7. After you turn off your fogger, allow the room to soak up the fog for 30 minutes.
  8. Open your windows and place fans all over the room to help dry it.

As long as your chosen solution works, you can rest easy knowing that this has fixed your mold problem.

Safety Tips for Using a Mold Fogger

When using a mold fogger, there are some important steps to make sure you stay safe during the process. Some of them are:

  • Read the instructions on how to mix your solution properly to avoid chemical accidents.
  • Wear a mask and a protective suit to protect yourself from the chemicals being sprayed.
  • Keep children and pets away from the area being misted.
  • Try not to mist too long so you can avoid puddles and moisture drips on walls.

Mist Over Mold

There you have our five picks for the best mold fogger. Each product offers a wealth of quality in performance. We urge you to take advantage of the information provided so you can choose which product best suits your needs.

Not only are foggers a great way to fight mold, but they also work to prevent them before they take root.

Until next time, pick a weapon of your choice and fight back the mold.

Headshot of Matthew Sullivan

About the Author

Matthew Sullivan

Matthew is a freelance writer with several years of experience in DIY and HVAC. For as long as he can remember, Matthew has always found great pleasure in taking things apart and learning how to put them back together.