5 Best Air Purifiers To Effectively Fight Mold (2022)

I think there is hardly a household that doesn’t have a problem with mold. If you also have had issues with mold in your home, you know how difficult it is to combat it and how unpleasant the smell can be. Although mold is easy to spot on the surface, its formation is almost invisible.

This is because tiny mold spores in the air make their way into your home, either through a window, through your clothes, or in another similar way. By the time they enter the house, it is usually too late. Usually, within a short period, mold growths form, which, in addition to their unsightly appearance, give off an extremely unpleasant smell.

Best Air Purifiers For Mold - In-depth Guide
These are some air purifiers I have tested in a moldy environment.

Mold often appears in damp places such as toilets, kitchens, or walls exposed to moisture from the outside. You can also often see this phenomenon in the cellar or in certain places in the house that are not directly exposed to sunlight.

Since mold spores in the air are between 1 micron and 40 microns in size, an air purifier equipped with a HEPA filter can easily catch them. It should also be noted that modern air purifiers use filtration technologies such as activated carbon filters and UV-C filtration, which help neutralize the unpleasant odor caused by mold.

In this article, I have identified a list of the best air purifiers you can buy that are effective in combating mold based on tests tailored to the specific situation.

Here’s a Summary of The 5 Best Air Purifiers For Mold!

  • Levoit Core 600S – This is definitely the best choice and my warm recommendation. It covers rooms up to 635 sq. ft., is equipped with 3-stage filtration technology, and fights mold effectively.
  • Winix 5500-2 – This is one of the best air purifiers on the market. It uses 4-stage filtration technology, the pre-filter and carbon filters are washable, and it is designed for rooms up to 360 sq. ft.
  • RabbitAir MinusA2 – This air purifier uses a unique 6-stage filtration technology and covers rooms up to 815 sq. ft., and is definitely an excellent choice in the fight against mold.
  • Blueair 411 – This small air purifier covers rooms up to 161 sq. ft. It has quality filters, is easy to maintain, and I recommend it for some smaller spaces.
  • GermGuardian AC4825 – It differs from the others on the list in that it uses UV-C light as an additional level of filtration. It is a reliable and efficient air purifier that covers rooms up to 167 sq. ft.

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Top 5 Air Purifiers For Mold

Before we move on to the list of the best air purifiers for mold, I would like to point out that it is very difficult for an air purifier to destroy pre-existing mold already attached to the wall.

In fact, an air purifier can trap mold spores in the air and thus prevent mold from forming in the home. It can also neutralize the very unpleasant odors caused by mold. Most importantly, an air purifier can definitely reduce the health symptoms caused by mold.

Levoit Core 600S

Levoit Core 600S - Best Air Purifiers For Mold
Levoit Core 600S air purifier.

Levoit Core 600S Highlights

  • The Levoit Core 600S is a large air purifier that covers rooms up to 635 sq. ft.
  • This air purifier uses 3-stage filtration technology consisting of a pre-filter, True HEPA filter, and activated carbon filter.
  • The Core 600S is extremely affordable, highly efficient, and easy to use.
  • Levoit provides a 2-year warranty on this model.

The Levoit Core 600S is a smart air purifier designed for large spaces up to 635 sq. ft. This air purifier uses three-stage filtration technology. Most importantly, it has a True HEPA filter that efficiently traps mold spores in the air. In addition, I would like to praise the carbon pellet-based filter, which makes the Core 600S very good at neutralizing unpleasant odors.

Speaking of advanced options, it is essential to point out that this model has many advanced options, among which I would highlight the air quality sensor, the air quality indicator, the auto mode, and the smart app. Not all of these options are essential for operation, but they can also help in everyday usage.

This model is characterized by its powerful airflow, attractive design, and affordable and long-lasting filters. On top of that, it has some exciting features like QuietKEAP, which allows this device to be efficient at filtering the air and, at the same time, quiet. That’s a fantastic feature that makes this device ideal for the bedroom. If you have mold in the bedroom, I recommend running this device at night. Silent work will surely not break your sleep.

All in all, the Levoit Core 600S is my absolute recommendation if you want to prevent mold formation or neutralize the unpleasant odor emitted by mold. It is the best air purifier for mold!

Filters Pre-filter, True HEPA Filter, and Activated Carbon Filter
Coverage 635 sq. ft.
Power Consumption 49W
Warranty 2-year

Winix 5500-2

Winix 5500-2 - Best Air Purifiers For Mold
Winix 5500-2 air purifier.

Winix 5500-2 Highlights

  • The Winix 5500-2 is a medium-sized air purifier designed for rooms up to 360 sq. ft.
  • It uses 4-stage filtration technology, among which I would highlight the high-quality True HEPA filter and the activated carbon filter.
  • Advanced options such as an air quality sensor, air quality indicator, auto mode, and remote control are all part of this Winix model.
  • The Winix 5500-2 comes with a 2-year warranty.

The Winix 5500-2 has the title of one of the best air purifiers I have had the opportunity to test so far. Although the design is a bit dated, even without smart options, this air purifier still stands out for some much more important features, such as filtration technology.

The Winix uses a 4-stage filtration technology consisting of a pre-filter, True HEPA filter, AOC activated carbon filter, and PlasmaWave technology. I would like to highlight, in particular, the high-quality True HEPA filter and the fact that the pre-filter and the AOC carbon filter are washable. PlasmaWave is an incredible technology that breaks down pollutants. It can also break down odors, which means bad smells are gone as soon as they get filtered by this advanced technology.

Among the advanced options, I would highlight the air quality sensor, the auto mode, and the remote control. However, I would like to point out that the air quality sensor only detects odors in real time. This air purifier has very long-lasting filters that last up to 12 months.

All in all, the Winix 5500-2 is an excellent choice and my absolute recommendation, mainly if you are focusing on neutralizing odors caused by the appearance of mold.

Filters Washable Pre-filter, Washable AOC Carbon Filter, and True HEPA Filter
Coverage 360 sq. ft.
Power Consumption 70W
Warranty 2-year

RabbitAir MinusA2

RabbitAir MinusA2 - Best Air Purifiers For Mold
RabbitAir MinusA2 air purifier.

RabbitAir MinusA2 Highlights

  • RabbitAir MinusA2 covers rooms up to 815 sq. ft.
  • It uses a 6-stage filtration technology that is among the most sophisticated on the market.
  • It does not need a lot of energy to work and uses an engine with a power of only 61W.
  • RabbitAir gives a very generous warranty of up to 5 years on this model.

Its high-quality filtration technology is distinctive about the RabbitAir MinusA2 and why it makes the list of the best air purifiers for mold. In fact, this air purifier even uses 6-stage filtration technology. The filtration technology consists of a pre-filter, a medium filter, a BioGS HEPA filter, a custom filter, an activated carbon filter, and a negative ion generator. It is simply impossible for RabbitAir not to achieve excellent performance with this type of filtration system.

In addition, I would like to point out that I really like the design of this air purifier and the possibility of hanging it on the wall. However, the best thing about MinusA2 is the BioGS HEPA filter that can remove almost all air pollutants at rapid speed.

The RabbitAir MinusA2 is a powerful air purifier with fantastic filtration technology that efficiently traps mold spores in the air and neutralizes any unpleasant odors in your home.

Filters Pre-filter, Medium Filter, BioGS HEPA Filter, Customized Filter, Activated Carbon Filter and Negative Ion Generator
Coverage 815 sq. ft.
Power Consumption 61W
Warranty 5-year

Blueair 411

Blueair 411 - Best Air Purifiers For Mold
Blueair 411 air purifier.

Blueair 411 Highlights

  • The Blueair 411 is a small air purifier designed for rooms up to 161 sq. ft.
  • This air purifier uses a 3-stage filtration technology consisting of a pre-filter, a particulate filter, and a carbon filter.
  • Affordable maintenance, quiet during operation, low power consumption, and highly efficient air cleaning make this model the best.
  • Blueair provides a 2-year warranty on this model.

The Blueair 411 is a small air purifier designed for small spaces. It is characterized by its minimalism, ease of use, and excellent performance in all the tests I have carried out on it.

This air purifier uses 3-stage filtration technology with the addition of HEPASilent technology. HEPASilent is actually an ionizer that is always on, but it is important to point out that this device is CARB certified, which means that it does not produce unauthorized amounts of ozone. The Blueair 411 also features a washable pre-filter, which is also available in several different colors.

Blueair, as a company, has been on the market for a long time. The air purifiers they make are reliable and very efficient. Maybe this particular model lacks some advanced options, but I am positive the mold in your home will be destroyed.

In addition, the Blueair 411 is a real energy saver with very affordable filters, making it highly affordable to maintain. I recommend the Blueair 411 if you have a mold problem in a small room and want an efficient and highly affordable air purifier.

Filters Washable Pre-filter, Particle Filter, and Carbon Filter
Coverage 161 sq. ft.
Power Consumption 10W
Warranty 2-year

GermGuardian AC4825

GermGuardian AC4825 - Best Air Purifiers For Mold
GermGuardian AC4825 air purifier.

GermGuardian AC4825 Highlights

  • The GermGuardian AC4825 is a small air purifier designed for rooms up to 167 sq. ft.
  • This air purifier uses 3-stage filtration technology, which is most credited for its fantastic test performance.
  • There are no advanced options; it uses a mechanical wheel, which means it can be plugged into a smart plug and has a filter reset indicator.
  • The GermGuardian AC4825 comes with a 3-year warranty.

I would like to point out right away that the reason why the GermGuardian AC4825 made it on the list of the best air purifiers for mold is that it uses a slightly different filtration technology than the other devices mentioned. This air purifier basically uses a 3-stage filtration technology consisting of a pre-filter with charcoal, a true HEPA filter, and UV-C light. It found its place on the list because of the UV-C light, which can destroy airborne particles rather than trap them like the other filters.

GermGuardian AC4825 is still one of the best 3-in-1 air purifiers for home. Thanks to its powerful engine and decent filtration system, the masses still use it. People are delighted with this air purifier which means that it works well.

In addition, it is one of the most popular and reliable air purifiers on the market, which in a way, is a testament to its quality. I don’t like the slightly outdated design, but I don’t think that’s so important because the GermGuardian works very well, as shown in all the tests. This air purifier is also a perfect choice in the fight against mold and is my warm recommendation for purchase.

Filters Pre/Charcoal Filter, True HEPA Filter, and UV-C Light
Coverage 167 sq. ft.
Power Consumption 55W
Warranty 3-year

How Dangerous is Mold in Your Home?

As I mentioned earlier, this phenomenon can harm your health and cause potential health problems. According to some research I found on the internet, as many as 24% of households in the USA may contain mold.

Mold on the wall in my basement
This is what mold looks like on the wall.

Mold can cause several respiratory diseases, trigger various allergies and, in any case, be detrimental to your health. It is, therefore, best to reduce mold in the house, eradicate it or avoid breathing it and being exposed to it altogether.

Do Air Purifiers Prevent Mold?

Before every research I do and every shopping guide I write, I test the device in a specific situation. Where I live, I have several different locations for all but ideal conditions for different tests. 

For example, my parent’s house has a room right next to the garage, which is not well insulated. The north side is exposed to high humidity, which is why a lot of moisture appeared inside the room (this problem goes back a long time). Before I started researching and testing air purifiers, I personally found it impossible to go to sleep in this room, mainly because I got a headache after staying in it for more than 30 minutes, mainly because of the highly unpleasant smell of mold. This can be partially reduced by opening the window, but not always and not completely. That said, I have used this room to test air purifiers and see whether and how effectively they can help to neutralize the odors in this room. What I have noticed, and what I can say, is that when the air purifier is working, I can easily stay in the room, as there is almost no mold smell.

These tests have confirmed what the air purifier can and cannot do. It is important to differentiate and draw the line regarding the effectiveness of an air purifier in the fight against mold. This device can be extremely useful in preventing the formation of mold, preventing the spread of mold, as well as in neutralizing unpleasant mold odors, but it cannot remove pre-existing mold that has adhered to a surface. 

Therefore, for anyone with an existing mold problem, in addition to purchasing an air purifier, I recommend:

  1. Find and fix various problems, whether ventilation, insulation, or something else.
  2. Hire a professional or agency to remove the mold.
  3. Remove the contaminated part, thoroughly clean the mold’s surface, and then do whatever you can to prevent it from reappearing.
  4. Many people use methods of drying walls with a heater to kill mold.
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FAQ on Best Air Purifiers For Mold

Which air purifier is best for mold?

Basically, an air purifier can prevent mold from forming and remove the unpleasant odors caused by it. This means that an air purifier equipped with a True HEPA filter and activated charcoal is the best choice for mold.

Do air purifiers help with mold?

They definitely do! Air purifiers neutralize the unpleasant odor caused by mold and prevent it from occurring by trapping mold particles in the air before they stick to the wall or other surfaces.

Does the HEPA filter capture mold spores?

Sure, guys! Mold spores range in size from 1 micron to 40 microns, and a HEPA filter can trap particles down to 0.3 microns, which means this filter will do the job without a problem.

How do you know if you have mold in your house?

Generally speaking, there isn’t a person who isn’t bothered by mold in some way. An allergy to mold can cause coughing, itchy eyes, and other similar symptoms. In some people, mold allergy is also associated with asthma.

What is the best way to prevent mold growth in my house?

In addition to good insulation, drying surfaces where mold is present and hiring a professional, using air purifiers is one of the best ways to prevent mold growth.

Final Thoughts

We have seen that mold is a huge problem in many households. In this article, I’ve explained why this phenomenon is harmful, how to prevent it, and how to minimize the negative health effects that mold can cause.

In short, buying an air purifier is a great investment, whether you have a problem with mold in the house or if you want to prevent the possible development of mold in the house.

To simplify the purchasing decision, I suggest going for the Levoit Core 600S air purifier as the best choice, with the Winix 5500-2 model right behind it. If you have any questions or confusion on this topic, I invite you to leave a comment in the comments box below.

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