The 5 Best Mold Foggers of 2024 – Mold Removal Made Easy

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If you have ever had a mold outbreak in your house then you probably know that the mold you can see is only the beginning of the problem. Believe it or not, only 10% of mold is visible – the other 90% is microscopic. On top of this, there is usually even more mold behind the scenes in the roof space, wall spaces, heating and cooling ducts, and many other places that are inaccessible.

This is why a mold fogger can help clear up a mold problem quickly and easily. If you want the quick answer, then the Concrobium Fogger is our top pick. But there are other options. Read on to learn which model is best fo your needs.

Best Overall
Concrobium Mold Control Fogger
  • Easy to use and set up
  • Successfully eliminates mold and musty odors in sizeable or unreachable areas
  • Works seamlessly with Concrobium Mold Control solution
  • Durable and solid construction
  • Functionality customization with adjustable flow rate and nozzle
Best Budget Pick
BioCide - Particulates Deodorizer and Odor Treatment Fogger - 6 oz
  • User-friendly setup and application
  • Highly effective in eradicating mold and mildew
  • Reach extends to hard-to-access areas
  • Eco-friendly and biodegradable
  • Cheaper than a dedicated fogger
Commercial Grade
Vectorfog C150+ Electric ULV Fogger
  • Versatility in various applications
  • Quick and efficient for commercial use
  • Adjustable nozzle for varied droplet sizes
  • Lightweight and portable with a comfortable handle and a long hose
  • Compatibility with both water-based and oil-based solutions

The Best Mold Foggers For Indoor Mold

Concrobium Mold Control Fogger

A concrobium mold fogger
  • Tank size: 1 gallon (3.8 L)
  • Particle size: 15-40 microns
  • Coverage: Up to 2,800 sq ft (260 sq m) per gallon
  • Dimensions: 12.5 x 12.5 x 14.25 inches (31.8 x 31.8 x 36.2 cm)
  • Warranty: 1 year limited


  •  Easy to use and set up
  • Successfully eliminates mold and musty odors in sizeable or unreachable areas
  • Works seamlessly with Concrobium Mold Control solution
  • Durable and solid construction
  • Functionality customization with adjustable flow rate and nozzle


  • Heavy and large, hindering portability
  • Higher price point compared to competitors
  • Potential for leaking, clogging, and overheating
  • Possible white residue on surfaces

The Concrobium Mold Control Fogger holds its own as our top pick when it comes to mold foggers, standing out both for its performance and versatility. It works as a Cold (ULV) fogger, which means it utilizes air pressure to atomize the solution into fine particles of 15-40 microns, effective for dealing with widespread mold issues and musty odors, particularly in large or hard-to-reach areas.

I have been particularly pleased with its ease of use, effective performance, and durability. The adjustable flow rate, convenient nozzle, and the inclusion of a filter and funnel make it worth the slightly higher cost over other models. 

It’s also designed to work flawlessly with the Concrobium Mold Control solution, a non-toxic and odorless formula.

However, it does come with a few shortcomings. It’s heavy and bulky to carry around, pricier than other foggers and may leak if the seal is not properly secured. 

Regular cleaning is a must to prevent clogging or overheating, and it may leave a white film on surfaces that needs to be wiped off manually.

If you’re dealing with indoor mold infestations, the Concrobium Mold Control Fogger is an excellent solution. Its patented formula effectively kills mold beneath the surface and protects from future occurrences without the use of harmful chemicals.

It’s not recommended for outdoor mold or visible surface mold, but for isolated or tricky indoor spots, it’s a game-changer.

Tri Jet ULV Non Thermal Fogger

Commander Tri Jet Fogger
  • Tank size: 1 gallon (3.8 L)
  • Particle size: 15-30 microns
  • Coverage: Up to 2,000 sq ft (185 sq m) per gallon
  • Dimensions: 13 x 13.1 x 16.8 inches (33 x 33.3 x 42.7 cm)
  • Warranty:  5 year limited


  • Easy to use and setup
  • Versatile solution compatibility
  • Effectively eliminates mold and odors 
  • Adjustable flow rate and nozzle
  • Durable construction
  • Cheaper than the concrobium model


  • Weight and bulkiness hinder transportability
  • Potential for leaks or spills 
  • May clog or overheat without regular cleaning 
  • Possible white residue left on surfaces.

The Tri Jet ULV Non-Thermal Fogger is another great choice. One of its prime advantages is its compatibility with various solutions— not only does it work smoothly with dedicated mold controls like Concrobium, but it also performs effectively with readily available substances like vinegar and bleach. 

This flexibility offers homeowners significant control over their mold-killing regimen, suiting different preferences and needs.

My experience with this fogger has been marked by ease and efficiency. Setting it up and getting started is a breeze, and it doesn’t fail to impress when it comes to effectiveness. It eliminates mold and musty odors, even in larger spaces that are often hard to access. The durable construction means it can stand up to frequent use, and the adjustable flow rate and nozzle provide the convenience of a tailored approach to mold treatment.

However, as with all products, there are some potential downsides. The fogger’s weight and bulk can present problems when carrying it around. Even though it is cheaper than the Concrobium model, cost might be a barrier for some. Care must be taken when handling it, as spills or leaks can occur if it’s not properly secured. 

As with other foggers with a similar design, regular cleaning is important to prevent clogs or overheating.

The Tri Jet Fogger shines where it matters the most. It’s built to work even in hard-to-reach areas like basements, attics, and ducts, tackling those problematic spots where mold can grow unnoticed and cause health issues. The ability to treat larger areas quickly and with minimal mess is a significant plus. Additionally, its other applications, like sanitizing, and disinfecting, make it a versatile tool to have in your home maintenance arsenal.

Biocide Mold Bomb

BioCide - Particulates Deodorizer and Odor Treatment Fogger
  • Coverage: Up to 6,000 cubic feet (170 cubic meters) per can
  • Active ingredient: Chlorine dioxide
  • Shelf life: 2 years


  • User-friendly setup and application
  • Highly effective in eradicating mold and mildew
  • Reach extends to hard-to-access areas
  • Eco-friendly and biodegradable
  • Cheaper than a dedicated fogger


  •  Potential white or yellow residue on surfaces
  • Can irritate eyes or skin
  • Might not solve severe infestations

In the realm of mold remediation, the Biocide Mold Bomb Fogger stands as a great cheaper option. As an aerosol fogger, it releases a fine mist designed to obliterate mold, mildew, fungi, and even viruses both in the air and on surfaces. 

It’s quite handy, effectively dealing with the unpleasant musty odors and checked the regrowth of mold, which further ensures your space remains mold-free for longer.

The user-friendly design shines, all you need to do is shake the can, position it in the center of the desired room, activate the valve to release the fog, and let it get to work. Suitable for various settings – from homes and offices to recreation vehicles, the reach of this fogger is impressive. It readily penetrates hard-to-access areas like basements and crawl spaces, ensuring no mold spots go unnoticed.

Coupled with its efficacy, several other benefits make this fogger a worthy consideration. It’s safe to use on a range of surfaces—from wood to leather, it’s biodegradable, and eco-friendly. 

However, despite these positives, the Biocide Mold Bomb Fogger might pose some challenges. There may be instances of a white or yellow residue on surfaces and some may find it irritating to their eyes or skin. And  for severe mold infestations, professional intervention might still be necessary.

Smith Performance Sprayers Professional Pest Control Electric Cold Fogger

Smith Performance Sprayers Smith ULV Electric Cold Fogger
  • Tank size: 0.52 gallon (2 L)
  • Particle size: 5-50 microns
  • Dimensions: 14 x 11 x 14 inches


  • Ease of use with adjustable flow rate and droplet size
  • Lightweight and Portable
  • Durable and reliable construction
  • Offers atomization of pesticide, disinfectant, deodorizer, herbicide, fungicide and mold abatement solutions


  • Potential leakage from the tank or the hose
  • Noisy operation at high pressure
  • Requires regular cleaning and maintenance
  • Not best suited for large or outdoor areas.

The Smith Performance Sprayers Professional Electric Cold Fogger is another great choice. It’s a user-centric device, allowing easy adjustments to the flow rate and droplet size, which affords significant control during the mold remediation process. 

The fogger is lightweight and portable, equipped with a comfortable handle and a long hose for greater reach. A revelation from my use of this fogger is its reliability and durability, thanks to its poly-molded tank and stainless-steel nozzle, fostering long-term use.

Compatible with various solutions from water-based to disinfectants, it provides the flexibility to choose the most suitable remedy for the mold problem at hand. This fogger also atomizes the chemicals without using heat, preserving the potency of the solutions and protecting surfaces from potential damage.

Its powerful mist penetration capability helps get to those hard-to-access corners where mold is often left undisturbed. The device’s feasibility of controlling the droplet size and amount ensures a precise and economical application of the solution, preventing needless overspray or wastage.

A few downsides do need mentioning. There have been reports from users that it leaks from the tank or the hose connection. It also tends to be quite noisy when operated at high pressure. Like many other similar devices, it requires regular cleaning and maintenance to prevent it from clogging or corroding. Also, it may not be the best fit for large areas or outdoor use.

The Smith Performance Sprayers Professional Fogger makes for an excellent combatant against mold in small to medium-sized indoor spaces.

Vectorfog C150 Plus ULV Electric Cold Fogger

A grey and white blower on a white background.
  • Tank size: 1.6 gallons (6 L)
  • Particle size: 5-50 microns
  • Dimensions: 25 x 8 x 12 inches
  • Spray Distance: Up to 26 ft


  • Versatility in various applications
  • Quick and efficient for commercial use
  • Adjustable nozzle for varied droplet sizes
  • Lightweight and portable with a comfortable handle and a long hose
  • Compatibility with both water-based and oil-based solutions


  • Loud operation at high pressure
  • Constant need for an electrical outlet
  • Requires regular cleaning and maintenance
  • Unsuitable for delicate or sensitive surfaces.

The Vectorfog C150 Plus ULV Electric Cold Fogger proves to be a versatile ally against mold, excelling in varied applications like disinfection, pest control, and, most importantly, mold remediation. The industrial strength power that this fogger possesses, with its large tank capacity and high flow rate, posits it as a formidable choice for commercial use.

One of the features that stood out for me was the adjustable nozzle, which allows a variation in droplet sizes and spray patterns. Despite its suitability for commercial use, it is surprisingly lightweight and portable, adorned with a comfortable handle and a lengthy hose. The durability of this fogger cannot be understated, with its dependable stainless-steel nozzle and sturdy polyethylene tank.

This device’s compatibility spans both water-based and oil-based solutions, providing a range of options for the most effective treatment. The fogger produces fine mist potent enough to reach those hard-to-touch areas where mold spores tend to lurk, increasing its efficiency in dealing with mold significantly.

As far as downsides go, there are a few things to mention.
The device operates loudly at high pressure, it needs an electrical outlet or an extension cord for operation, and it requires frequent cleaning to bypass clogging. Also, it might not be the best choice for delicate surfaces or sensitive materials that could be adversely affected by moisture or chemicals.

Overall, the Vectorfog C150 Plus ULV Electric Cold Fogger demonstrates its strength in treating large indoor areas expediently and effectively.

How Do Mold Foggers Work?

a mold fogger being set up with black mold in the backgroundSource: pinepointpm

Mold fogging- ever heard of it? It’s a savvy technique used to combat airborne mold spores, the invisible enemy of a healthy home. It’s done with a device called a mold fogger that sprays a mist made from a solution of fungicide and distilled water. This fine mist can reach every nook and cranny, effectively grounding and incapacitating these airborne invaders.

Why Choose Mold Fogging?

The real selling point of mold fogging is its reach. Tricky areas like crawl spaces, attics, ductwork, or even whole rooms? No problem. It doesn’t just reach them; it envelops them in a protective mist that kills existing mold spores and curbs odors and allergens.

But, Wait! There’s a Catch

Mold fogging, like anything else, isn’t perfect. It can’t boot out actively growing mold or halt future mold growth if the root problem – say, moisture or high humidity – isn’t sorted out.

It’s not so effective on porous materials with visible mold growth, like drywall, insulation, or carpeting. Plus, it could harm sensitive items, like electronics and paper. Bottom line, it’s a supportive step, not a substitute for proper mold remediation.

When Could Mold Fogging Be Useful?

Some of the areas and items that a mold control fogger would be ideal for removing mold from include:

  • Basements
  • Rooms with a lot of Furniture
  • Bathrooms
  • Rooms with lots of Windows
  • Attics
  • Wooden decks/patios
  • Under the house
  • Crawl spaces
  • Roof spaces
  • Garages (heating your garage can help keep mold away)
  • Sheds
  • Walls

How To Use A Mold Fogger

Using a conventional mold fogger is certainly not rocket science, but it does help to get your head around the process before deciding if using a fogger is right for your needs.

mold fogger being used in a room
  1. Clear the area to be treated of any items that might get damaged by getting damp or wet (some furniture, electronics, paper, etc.)
  2. Add your mold control liquid of choice to the fogger tank
  3. Adjust the liquid flow rate settings on your chosen fogger to your desired setting
  4. Set the fogger up where it will be run and angle the fogger head for optimal dispersal (i.e. not pointed straight at a wall)
  5. Turn the fogger on for the desired time – but not so much that the solution runs on surfaces and pools
  6. After you have turned the machine off, let the area sit for half an hour so that all the fog has settled
  7. Open windows, turn on fans, and allow the area to dry

That’s it! There is no rinsing required, and if you’ve chosen a good quality mold control product – then not only will it kill the mold that exists now, it will prevent it from returning.

ULV Cold Fogging Vs. Thermal Fogging: A Comparison

ULV (ultra-low volume) cold fogging and thermal fogging are both widely used techniques for producing and disbursing fog or mist from liquid solutions. They serve various purposes like disinfection, pest control, humidification, and odor removal. However, they differ significantly in their mechanisms and outcomes.

ULV Cold FoggingThermal Fogging
MechanismHigh pressure and airflowHeat
Droplet SizeAdjustableVery small (0.5 to 10 microns)
VisibilityAlmost invisibleDense and visible
EfficiencyCovers a large area quicklyHigh solution usage efficiency
Energy SourceDoes not require fuel or electricityRequires gasoline or electricity
SafetyMay leave a residue on surfacesCan damage materials and emit harmful fumes
CostPortable and convenientIncreased operational costs due to energy
Popular UsesIndoor disinfection, mold remediation and outdoor pest controlOutdoor disinfection and indoor odor removal and mold remediation.

How ULV Fogging Works

ULV, standing for ultra-low volume, means the fogger is using a small amount of solution to create a large volume of fog, minus the heat.

This process works by employing high pressure and swirling airflow to atomize the solution into tiny droplets that are then sprayed into the air. The droplets’ size can be adjusted by tweaking the nozzle or the pressure settings.

The result? Almost invisible fog that can cover a large area quickly. But ULV cold fogging may not penetrate into cracks and crevices as efficiently as thermal fogging would. Moreover, it could leave some residue on the surfaces.

Understanding Thermal Fogging

In contrast to ULV cold fogging, thermal fogging introduces heat into the equation. The solution is heated in a barrel and is vaporized into a dense, visible fog. The resulting droplets are tiny, ranging from 0.5 to 10 microns, enabling the fog to reach hard-to-access places and trap or exterminate airborne particles effectively.

Despite being a more efficient user of solution than its ULV counterpart, thermal fogging calls for gasoline or electricity to power the heating element. This could limit its mobility and add to its costs.

Thermal fogging could also potentially damage or discolor certain materials like wood, fabric, and rubber. And to add to the concern, it can emit harmful fumes that could cause irritation to eyes, skin, and the respiratory system.

Choosing the Right Method

ULV cold fogging fits the bill for indoor disinfection in places like hospitals, schools, or offices, and for outdoor pest control in gardens, farms, and parks. On the other hand, thermal fogging lends itself well to outdoor disinfection in large public places and indoor odor removal.

However, ULV cold fogging would be unsuitable for scenarios involving a need for visible fog or very fine droplets. Similarly, thermal fogging could pose potential threats in places where heat or fumes could possibly damage property or health.

Both LV cold fogging and thermal fogging provide unique benefits and limitations. Opting for one method over the other should primarily depend on the specific needs of the application or scenario at hand.

Do you have any questions relating to this article? Email us at [email protected] or call us on +1 (310) 961-4908

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Photo of author
Aaron is the founder of and Essential Home and Garden. With over 15 years of hands-on experience in home ownership, lawn care, and gardening, Aaron is a seasoned expert in areas like lawn care, DIY, HVAC, and pest control.

30 thoughts on “The 5 Best Mold Foggers of 2024 – Mold Removal Made Easy”

  1. Avatar photo

    We plan to use the Biocide mold bombs in our master bathroom and adjacent closet, which is full of clothes. Should it be okay to leave all of the clothes hanging to be treated and also leave everything in our bathroom vanity drawers?

    • Aaron Green

      One of the great things about the Biocide Mold Bombs us that you can use it to treat the contents of the room. It SHOULD be safe to use without moving anything out. But if there is anything that is especially valuable or special to you then I wouldn’t risk it.

  2. Avatar photo

    After using the fogger machine, when is best time to do air quality testing so you get pass result? For instance, if you do a test an hour after fogging machine, will it still have some mold or does it kill on the spot?

    • Aaron Green

      I would think that waiting a few days at least would be ideal.

  3. Avatar photo

    Is it safe for pets and children to be brought back into my home 2 hours after I use the BioCide mold bomb Fogger aerosol can?

    • Aaron Green

      The instructions say let it settle for 2 hours – so I would think that should be ok.

  4. Avatar photo

    I’m trying to figure out what method to use in a garage attic…… 26×36 floor size with about a 4 ft. center. Would bombs do the trick? How many would I need. I’m willing to rent a Concrobium fogger if need be, but I want to solve this problem for good! thanks!

    • Aaron Green

      Hi Janet,
      That is about 3,700 cubic feet, and one mold bomb does 6,000 cubic feet – so that should be sufficient! You can get them on amazon here.

  5. Avatar photo

    We have an RV that was kept in a building for 15 years. We had a dehumidifier going. Anyway our friend moved in there as we had the water hooked up etc. and after two months mold was growing almost every where. So because its an RV that has paneling, does that have to be removed to get behind it. Also the furniture and carpet smells like mold and the shades have mold on it also. Its an older model RV so not worth spending a lot of money to save it IF IT CAN BE SAVED. I called a couple mold experts and they don’t work on RV’S. Its 38 ft long about 340 sq ft. What advice do you have . Thanks

    • Aaron Green

      Hi Norma, it sounds like you have more than a simple case there. I would recommend contacting Jennifer from – she is an expert on this stuff and should be able to give some good advice.

  6. Avatar photo

    I have a crawl space with a sump pump. I also have a vapor barrier installed. Discovered a couple of plumbing leaks and with the increased rain and high humidity I have developed a mildew, mold, fungus issue under the house. I am going to treat with the Concrodium Mold control fogger. Should I remove the vapor barrier prior to treatment so the chemical can get into the dirt? Also, will the fogger get the mist to the subfloor wood?

    • Aaron Green

      Yes you should remove that barrier. It’s hard to answer the second question, as it depends on what the area is like.

    • Avatar photo

      I have combated mold problems in many houses over the years. The last project was so bad that all the the insulation in the floor above the crawl space was soaking wet and dripping. Mold everywhere! Now it is mold free. Here is how I did it. First, I fixed the water leaks. The, I ripped out all the insulation that was in the crawl space, especially in the floor. So now the ground floor had no insulation. Then I laid down a construction 6 mil plastic over the entire dirt floor of the crawl space. That kept moisture from up through the dirt into the crawl space. Then I had a company foam the entire crawl space walls, including the window vents that had been there for years. Next, I bombed it with the BIOCIDE MOLD BOMB…they work great, are easy to use and do not leave a residue! Then put in your dehumidifier. Within a week your mold will be dead. It will still be there but dead. You can either remove/scrape/vacuum it off of not disturb it. I do the latter….leave it there and don’t remove it as I don’t want even dead mold airborne. This works perfect!!

  7. Avatar photo

    Do I need to wipe off or clean item and wall hangings after fogged? Also, are my drapes and bedding ok to leave out and be fogged as I am sure they have mold spores on them also.

    • Aaron Green

      No you dont have to wipe anything off unless it leaves a residue that annoys you. And you can leave drapes in the room, I wouldn’t recommend bedding though.

  8. Avatar photo

    I have a room with a 30′ ceiling…using a Tri Jet ULV fogger….any suggestions on getting fog to that height or do I need to get multiple foggers to create enough fog and put a fan on it?


    • Aaron Green

      Could you sit the fogger on something a bit higher? Otherwise fans are an option.

  9. Avatar photo

    Thanks for your response! I’m guessing it’s around 1000-1200 sq ft. Any thoughts on can fogger versus fogger machine rent or buy? We definitely are focused on drying the space out, and got the water out right away. From what we can tell, it’s dry. The temp is hot where I live (high was over 90 today), so heating the space at this time could be hard on the AC and not pleasant for us. I see your point though.

    • Aaron Green

      That does sound like a large space for a can fogger, but this kit MIGHT do it. Otherwise I guess it depends on if you think you will need a fogger again in the future? Will it be a good investment?

  10. Avatar photo

    I have a music keyboard and a guitar amp in the molded room. There are also papers and different small objects on a table in the room. What do I do with these Items?

    • Aaron Green

      I would remove these items.

      • Avatar photo

        If you use the Biocide Mold Bomb, just leave the stuff in the room

  11. Avatar photo

    if i use a can of mold fogger in my basement, do i need to turn off water heater and furnace???

    • Aaron Green

      That would be advisable – yes.

  12. Avatar photo

    I had the fan on this for 3 days and it still smells like mildew.

    • Aaron Green

      It might be time to bring in a specialist then….

  13. Avatar photo

    I used the fogger from Home Depot. I aimed it at a wall behind and under the kithen sink. Afterwards, I put a fan on so it would dry. Even at the opening of a hole we had in the wood wall, we have a pipe and other things. The wall is white but the stains are still black from the mold. I thought they would lighten up a bit. Is the mold gone?


    • Aaron Green

      The mold should die off fairly quickly, but it may leave a stain? It is hard to tell just from this.

      • Avatar photo

        We had a sump pump break and consequently a couple of inches of water in our basement. The basement is unfinished with cement floors, and we have a dehumidifier running, but there’s still a noticeable musty odor. There’s no visible mold or mildew. Would you recommend I use a can fogger (less expensive option) or purchase a fogger and separate chemical (significantly more expensive). Thanks!

        • Aaron Green

          It depends how big your basement is. But I think what you really want to do is get that area dry as quick as you can. Have you thought about heating the area for a few days to see if it improves the musty odor?

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