Fixing Mold Issues

The Best Air Purifier For Mold Spores In 2018

Mold and mildew are fungi that typically thrive in any moist environment. Fungi are basic microscopic organisms that play an integral role in the breaking down of dead organic matter and the regeneration of soil. 

When mold comes into your house, however, it can be a big problem. Mold growth can be black, brown, white, or green, and can eventually form a thick layer on surfaces in damp areas. Mildew is a fungus in its early stage of development. It’s a type of mold and typically grows on indoor surfaces like tiles and organic materials like wood. 

Mold grows in colonies and creates spores which are airborne. Mold spores can land on close by damp and organic surfaces, which is how colonies typically spread. 

Mold and mildew growth can be incredibly detrimental to the health of the people who live inside a house. Spores are allergens, and it can even cause conditions such as asthma. Other common symptoms include coughing, stuffy nose, and throat irritation. Exposure to mold and mildew over long periods of time can lead to the development of an allergy.

Fortunately, you don’t have to live with mold and mildew in your home. Mold air purifiers can kill spores and prevent colonies from spreading. Let’s take a look at the best air purifiers for getting rid of mold and mildew growth in your home. 

Review of the Top 5 Purifiers for Mold: Top Picks

Alen BreatheSmart Antimicrobial

Our Top Pick

Alen BreatheSmart Customizable
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    HEPA-Silver filtration 
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    Up to 1,100 square feet
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    Energy friendly system

Rated by: Stacy 

Austin Air Healthmate  For Mold Spores

Good Runner Up

Austin Air Healthmate
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    Classic HEPA filter
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    Zeolite compound filter
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    Removes 99.97% of allergens 

Rated by: Stacy

SilverOnyx 3 in 1 Air Filter For Mold

Good Value For Money

SilverOnyx 3 in 1 Review
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    5-level filtration system
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    Very cheap purifier 
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    No ozone production 

Rated by: Stacy 

Alen BreatheSmart Antimicrobial Air Purifier

Quick Summary

Alen BreatheSmart Customizable

Rated by: Stacy 

The purifier from Alen features a HEPA-Silver filtration system that removes up to 99% of airborne allergens, including mold spores, pollen, dust, pet dander, and other allergens that can be as small as 0.3 microns. It also has a prefilter to catch larger particles like hair and dirt to extend the lifespan of the unit. 

In addition to the HEPA filter and the prefilter, the unit also has an activated carbon filter to get rid of earthy smells that one typically associates with mildew growth. This unit purifies the air over an area with a size of around 1,100 square feet, which is big enough for large open plan rooms. At its highest speed, this purifier will filter all the air more than two times in an area of this size.

The BreatheSmart steps things up a notch when it comes to saving energy. It adjusts airflow speed automatically to ensure optimal performance, low running costs, and economic energy consumption. 

This purifier also makes use of Silver-Ion technology. By releasing water vapors into the air, it ionizes the airborne particles. Since the particles then have opposite charges, they will gravitate towards each other and stick together, making their removal easier and more energy-efficient. 

This purifier also makes use of Silver-Ion technology. By releasing water vapors into the air, it ionizes the airborne particles. Since the particles then have opposite charges, they will gravitate towards each other and stick together, making their removal easier and more energy-efficient. 

PROS

  • The unit features a HEPA-Pure filter
  • The Breathesmart can remove particles as small as 0.3 microns
  • Covers up to 1,100 square feet
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    Choose from different filter types
  • Provides relief from allergies and asthma

CONS

  • High price tag
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    Replacement filters are expensive

Austin Air Healthmate Air Purifier

Quick Summary

Austin Air Healthmate

Rated by: Stacy 

The Air Healthmate’s features a sophisticated filtration system that consists of a prefilter, a classic HEPA filter, and a 15 pounds activated carbon and zeolite compound filter. The prefilter traps larger dust particles and hair. The classic filter then takes care of the smaller particles like mold spores, fungi, and other airborne particles larger than 0.3 microns. This filter removes 99.97% of allergens from the air.

The filter from activated carbon and zeolite is incredibly effective at removing household odors. Mold and mildew tend to emit earthy or rotten odors in a home. This odor control function from the Air Healthmate will ensure that your house smells fresh until the growth disappears from your indoor surfaces. 

This unit from Austin requires little maintenance. You can clean the filters by vacuuming the unit from the outside, and one filter can perform optimally for more than three months without you having to replace it. 

The air purifier weighs around 45 lbs. For easier portability, it has casters so you can wheel it around your home to rooms where you suspect the presence of mold growth. The unit can clean an indoor room with a floor size of up to 1,500 square feet. The powerful motor can be left on the highest setting for an entire day or night without fail. 

There are three speed settings: high, medium, and low. You can use the high and medium settings to purify the air in a medium or large room quickly. The lower speed settings are ideal for permanent air circulation in, say, a bedroom. 

PROS

  • Air purifier removes 99.7% of mold spores
  • Activated carbon and zeolite compound for odor control
  •     Low maintenance requirements
  • Covers a large area of 1,500 square feet
  • High-quality motor 

CONS

  • The motor doesn’t run at low volumes
  • Replacement filters are expensive

SilverOnyx Air Purifier

Quick Summary

SilverOnyx 3 in 1 Review

Rated by: Stacy 

The SilverOnyx features a 5-level filtration system that includes a mesh pre-filter, a HEPA activated carbon filter, a UV-C light, and Ion generator.

The pre-filter captures larger particles before it enters the central filtration system. These particles include dust, microorganisms, and pet hair

The True HEPA filter is the SilverOnyx’s best feature as it is far superior to any other HEPA-type filter. This high-end filtration system gets rid of 99.97% of mold spores, as well as other allergens as small as 0.3 microns. 

The HEPA activated carbon filter takes care of all unpleasant odors inside your home, especially the earthy or rotten smells that mold and mildew tend to emit. In addition to the prefilter, True HEPA filter, and activated carbon filter, the Silver Onyx also has a UV-C light that kills mold spores in the air. If mold and mildew is a problem in your home, this UV-C light is a must-have to prevent the development of mold and mildew colonies. 

By sending water vapor into the air, the Silver Onyx ionizes particles which causes them to cling together, making removal easier. This air purifier also comes with a sensor to that automatically adjusts airflow. The auto-adjustment ensures optimal performance, less energy consumption, and the cleanest air possible. The unit cleans the air in an area up to 500 square feet so that it will perform well in a large open plan living space.  

The Silver Onyx features a modern and compact design. Its contemporary appearance will contribute to the aesthetic appeal of your home and. Since it is small, you can easily move it from room to room. 

PROS

  • Unit features a True HEPA filter
  • Takes care of larger particles and odors
  • UV-C light kills mold spores
  • No ozone production
  • Covers an indoor area of 500 square feet

CONS

  • Controls are somewhat complicated
  • The automatic setting does not include an ion generator and UV-C light

Coway AP-1512HH Mighty Air Purifier

Quick Summary

Coway AP-1512HH Mighty

Rated by: Stacy 

The Coway air purifier has a high-end 4-stage filtration system that consists of a prefilter, allergen filter, activated carbon filter, and ionizer. 

The pre-filter captures larger airborne pollutants like dust and hair, preventing these particles from settling on your furniture and flooring. Like the SilverOnyx, the Coway also features a True HEPA filter with an efficiency rating of 99.97%. If you have mold in your home, this filter will be able to remove mold spores and other small allergen particles completely. 


The Coway filtration system also includes an activated charcoal filter to neutralize moldy smells. The ionizer makes removal of these particles much more effective. By spraying light water vapors into the air, it gives the particles opposite charges, causing them to move towards each other and to cling together, making it easier for the filters to capture them. 

This air purifier has a compact design. It doesn’t have a prominent appearance, and you can easily carry it to problematic areas in your home. The unit also features an eco-mode with high-end sensors. If the air has been fresh for 30 minutes or longer, the unit will switch off, saving energy and running costs. It also has a timer, so you have more control over the unit and the quality of the air in your home. 

The Coway air purifier cleans an indoor area of up to 360 square feet, making it ideal for bedrooms and small living rooms. Since its features allow for the removal of mold and mildew, you can also use it in your bathroom or even spaces like walk-in closets. 

PROS

  • Air purifier with a True HEPA filter
  • Sophisticated 4-stage filtrations system
  • Ionizer makes particle removal easier
  • Features an Eco-mode with an air-quality sensor
  • Compact and modern design

CONS

  • High fan setting is too loud
  • No UV-C light to kill mold spores

Airfree Onix 3000 Air Sterilizer

Quick Summary

Airfree Onix 3000 Air Sterilizer

Rated by: Stacy 

At 99.99%, the Airfree Onix 3000 air sterilizer has the highest efficiency rating on this list. It covers an area of 650 square feet and is perfect for eliminating mold and mildew growth from a room. 

This unit works somewhat differently than other purifiers – by natural air convection. The unit’s ceramic core sterilizes the air by heating it up to around 400 ֩F. This heat kills all allergens, including mildew and mold spores. After it cools down the safe and clean air, it will send it back into the room. 

This air purifier is more efficient than its counterparts. It uses 52 watts, around the same as a light bulb. It produces no ozone and is entirely maintenance fee as there is no filter replacement necessary. Since it doesn’t make use of a fan, the air purifier runs silently. The air flows at a speed of 14 m^3.

This unit works best on a floor in a vertical position. Don’t place it on a thick carpet or near curtains or any other object that can obstruct airflow. If the unit tilts or falls over, causing a blockage of the airflow, the ceramic core with disconnect and an adjustable anti-stress light will start blinking.

The air cleaning mechanism of the Onix 3000 works differently from most other air purifiers. The unit has to be on for at least ten days before you will start seeing an allergen reduction of 70% or more. 

PROS

  • No maintenance requirements and filter replacements 
  • Easy to set up and use
  • Low energy consumption
  • The operation is completely silent
  • Effective in eliminating mold and mildew in a room

CONS

  • No activated carbon filter for odor neutralization
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    Only clears the air of allergens and not larger particles like hair

Mold & Mildew & Health & Air Purifier

Mold and mildew in your home can make you sick. Even if you are perfectly healthy with no history of allergies, it can irritate your eyes, skin, nose, throat, and lungs. If you are allergic to mold, however, your reaction to mildew and mold spores can even be more severe and can result in shortness of breath or asthma.

People who are not allergic to fungi or spores can develop an allergy over time, especially if there is mold in their living space. An allergy is an overreaction from your immune system to a foreign substance. 

Children, seniors, or people with conditions that compromise their immune systems such as HIV, cancer, liver disease may also have a physiological reaction or discomfort when they inhale or come into contact with mold or mildew. If you have chronic lung disease, you may also be more sensitive to fungi infestations. 

Fungi do not only cause problems relating to health. Mold and mildew can also grow on artworks, furniture, wooden floors, and other surfaces where it can cause a lot of damage.  

Preventing mold contamination should, therefore, be one of your main priorities when it comes to the maintenance of your property. There are many ways to stop the growth of this debilitating organism. 

Since mold and mildew develop in damp areas, it comes down to controlling humidity levels in your home and ensuring proper ventilation of damp areas like bathrooms, laundry, and cooking areas. 

Controlling the spreading of mold spores prevents the spread of colonies. One effective way to eliminate mold is by using an air purifier that filters the air and captures mold spores and other elements. 

Let’s take a look at purifiers and how they can help to eliminate mold growth from the inside of your home. 

How Does an Air Purifier Help with Mold?

An air purifier is a practical accessory to remove and prevent the development of fungus colonies. True HEPA filters are the most effective for eliminating mustiness. Since there is no moisture in the filter, you don’t have to worry about mold growth on the inside of your air purifier. 

If you live in an area with high humidity, however, it may be a good idea to use a filter with an antimicrobial treatment.

It is not always possible to locate a must infestation. Air purifiers can eliminate these contaminations without you having to know where they are. Mold spreads with airborne spores that land on wet or organic surfaces. Since purifiers trap these spores, they lose their means of replication.  

If you are dealing with an established infestation, use the services of a licensed contractor to remove the mold. Using an air purifier afterward will prevent mold growth from forming again.  

Because mold spores’ sizes typically range from 1 to 30 microns, choose an air purifier that can trap airborne particles as small as 0.30 microns. These filters will also remove other allergens such as dust and pet dander. 

Some units have a UV light to kill spores. Although this is a handy feature that increases the purifiers effectiveness in dealing with mildew and mold, it can increase the cost of the purifier. A True HEPA filter with high-end performance motor will be sufficient to remove spores and prevent mold growth.  

Mold and mildew tend to emit a rotten or damp earthy smell that can be quite unpleasant. Make sure that your air purifier has an activated carbon filter to remove odors. Carbon is a natural substance that neutralizes odors to give your home a fresh smell, especially if mold is embedded into a surface and difficult to remove. 


It can be hard to see physical evidence of mold growth in your home. If you or members of your family experiences symptoms like irritation or allergies, the chances are that you are dealing with mold or mildew.  

An air purifier that is permanently on at a low setting can be the most effective cleanser and mold remover in your home. It will also ensure that the air in your home is clean and free from other pollutants such as dander and dust. 

When you shop for a purifier, make sure that you choose a unit that has a True HEPA filter that can capture particles as small as 0.3 microns. Also, only buy a unit that has an activated carbon filter to control moldy smells in your house. 

Although a UV light can help to kill spores, it may not be worth the more expensive price tag. The SilverOnyx in our list, however, provides you with a highly effective UV-C light at an affordable price. 

An additional buying consideration is the area coverage. The Alen BreatheSmart covers a whopping 1,100 square feet and is suitable for mold control in large rooms. Incidentally, it also has an antimicrobial filter, making it the best option if you live in a high-humidity area. 

Air purifiers like the Coway AP-1512HH cover small areas, but they are portable and more suitable for bedside use.  

The air purifiers in this list can make significant changes to you and your family’s health. Invest in a high-end filtration system today to ensure clean indoor air.