Best Air Purifier for Mold: Reviews & In-Depth Buyers’ Guide

Living with mold can lead to a number of health issues including breathing troubles, sore throats, and skin irritation. To help, our experts have put together a list of great air purifiers to help you find the best air purifier for mold that fits within your budget, space, and air cleaning needs.

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All throughout the United States, as well as around the rest of the world, mold is a serious and always present health concern for both homeowners and renters alike.

In fact, a study conducted by the University of Arizona in 2003 revealed that 100% of homes contain some type of mold, although not always the kind which will pose issues for you and your family’s health.

But what if your home does contain harmful molds? Maybe you or your loved ones have already experienced some of the symptoms of mold inhalation, including labored breathing, itchy eyes and throat, and even skin rashes and irritation.

While the most severe cases of mold require professional remediation to treat, most health issues can be solved by investing in a quality air purifier to remove airborne mold spores and particles before they’re able to spread, grow, and make your family sick.

Here we’ve put together an in-depth buyer’s guide to help you find the best air purifier for mold that fits into your price range and spatial needs.

Best Air Purifier for Mold


Rating: 9.3 / 10
Covers up to 326 sq.ft.
Removes particles > 0.3 microns
Three-Stage Filtration System
CADR 315

Rating: 8.5 / 10
Covers up to 390 sq.ft.
Removes particles > 0.3 microns
360-Degree Airflow
CADR 250

Rating: 8.3 / 10
Covers up to 350 sq.ft.
Removes particles > 0.3 microns
Auto-Adjusting Speed
Three-Stage Purification

Coway AP-1512HH

Four-Stage Filtration

TrueHEPA Filter

best air purifier for mold

The Coway AP-1512HH is widely considered as one of the best air purifiers for mold for small to medium sized spaces. That’s because this unit uses a four-stage filtration system, which includes a washable pre-filter, an odor filter, a TrueHEPA filter, and a Vital Ionizer for maximum purification.

Rated to clean spaces that are up to 326 square feet in size, the AP-1512HH makes a smart choice for master bedrooms, mid-sized offices, and even some smaller living rooms. But while it’s powerful and able to efficiently clean polluted air in these types of spaces, it simply doesn’t have the output to act as a whole-home solution.

This air purifier from Coway comes equipped with three different timer settings: 1, 4, and 8-hour controls. It’s also Energy Star certified, using less than 78 watts per hour on its highest setting. And unlike many other lower-quality air purifiers, the Coway AP-1512HH has been certified to release little-to-no ozone, a chemical linked to throat and eye irritation.

Overall, the AP-1512HH is a good choice as the best air purifier for mold for most buyers.

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Honeywell 50250-S

Removes 99.97% of Airborne Contaminants

CADR of 250

air purifier for mold

Covering a slightly larger space than the previous pick, the Honeywell 50250-S is a popular air purifier that’s able to clean rooms up to 390 square feet in size. And unlike most other air cleaners on the market, the 50250-S boasts a circular design which allows for an improved 360-degree airflow.

Utilizing both a carbon pre-filter and a PureHEPA filter, this Honeywell air purifier is able to remove mold spores as small as 0.3 microns from your home’s air with the removal of 99.97% of airborne particles.

It’s also lightweight: weighing in at just 20 pounds, the Honeywell 50250-S is easy to transport from room to room as needed. Keep it running in the living room during the evening, and then bring it into your bedroom at night for the best, most relaxing sleep possible – aided in part by the unit’s low-noise fan design.

Among the best air purifier for mold for its long-lasting protection, the 50250-S comes with a five-year limited manufacturers’ warranty directly from Honeywell, meaning that they’ve got you covered if problems arise.

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Winix PlasmaWave 5300

Built-In Air Quality Sensor

Energy Star Approved

best air cleaner for mold

Great for eliminating mold and dust, as well as odors and chemical vapors, the Winix PlasmaWave 5300 is a high-end air purifier designed to treat spaces up to 350 square feet in size with 99.97% removal of contaminants.

Featuring three separate purification technologies – the odor control pre-filter, a TrueHEPA filter, and Winix’s proprietary PlasmaWave ion generator – the PlasmaWave 5300 is a good buy for anyone who wants maximum mold purification at a reasonable price.

Free of harmful ozone emissions, the 5300 comes with a fully functionally air quality sensor which can tell exactly when it should speed up to keep your home’s air at optimal purification. Simply set your machine and forget it, and let the auto sensor adjust the fan speed as needed.

The Winix PlasmaWave 5300 would definitely be called the best air purifier for mold for someone who wants a highly functional, easy to use model that’s built to last for the long run.

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Air Purifiers for Mold: How They Work

Selecting the best air purifier for mold involves finding a machine that’s able to process out the microscope mold spores and particles that become airborne and contaminate the air in our homes. Luckily, high-quality HEPA air purifiers are able to do this effectively – removing up to 99.97% of particles that are as small as only 0.3 microns in size.

Modern electric air purifiers work by using a fan to suck in dirty air and pass it through multiple different filters in order to remove any contaminants before releasing the cleaned air back into the room.

The most commonly discussed type of filter is the HEPA filter. This is the primary source of cleaning in most air purifiers for mold, and removes the smallest or all contaminants.

But in addition to HEPA filters, most units use pre-filters for catching hair and larger dust particles, carbon or charcoal filters for collecting airborne gases, and even ionic filters for sending a positive charge to destroy hard-to-eliminate contaminants.

Do I Need a HEPA Filter?

If you’ve spend any time at all looking at air purifiers, you’ve definitely come across the phrase ‘HEPA filter’ more than once. But what exactly is a HEPA filter and is it something that we really need to remove mold from the air in our homes?

HEPA stands for high-efficiency particulate air, and are among the highest quality filters available on the market. They’re what doctors’ offices, hospitals, and laboratories used to maintain a sterile environment, and they can work wonders for you in your home or office.

To be classified as a HEPA filter, a filter must be able to capture 99.97% of airborne particles and contaminants down to just 0.3 microns in size. To put 0.3 microns into scale, particles of this size are microscope and hundreds of times smaller in diameter than a single strand of hair.

So to answer the original question, yes – if you’re looking for the best air purifier for mold, you’re absolutely going to want to choose one that comes equipped with a HEPA filter. Since harmful mold spores that float through your home are microscope, it’s important you have an air cleaner powerful enough to filter them out.

Choosing the Best Air Purifier for Mold

While the wide selection of quality air purifiers makes it easier for buyers to find one which works well in treating mold, it makes it more difficult to select one particular model as the single best air purifier for mold. Instead, the best air purifier for each specific buyer is going to depend on a few factors:

Budget/Price Range

It’s no secret that air purifiers come in a wide range of different prices. From low-cost budget options to high-end medical-grade machines, you can spend as little or as much as you want improving the air quality in your home.

Although the price of an air purifier doesn’t necessarily correlate with its performance, you’ll typically find that the best air purifiers for mold will run between $300 and $600 for a large room or full-house model. For a quality air cleaner designed to treat small spaces – such as a bedroom or small office – expect to spend between $150 and $250.

You’ll definitely find great deals priced below these levels from time to time, and there will always by super high-quality machines available at a higher cost for treating the most serious of mold-related health issues.

Square Footage/Spatial Needs

Apart from their level of purification, the biggest thing that differentiates most air purifiers is the amount of space that they’re rated to handle. You should never purchase an air purifier for mold without first checking the square footage it’s certified for and ensuring that fits alongside of your needs.

In general, you’ll find air purifiers designed for small spaces like bedrooms and offices, often up to a few hundred square feet, and then full-home or apartment air purifiers made for larger spaces such as 800, 1,000, or even 1,200+ square feet.

You can expect to pay more for large whole-house air purifiers, especially if you’re searching for the best air purifier for allergies such as from mold, and as a result some buyers choose to purchase multiple smaller air cleaners and simply place them throughout the home in the rooms with the greatest needs.

Air Purification Needs

Are you searching for an air purifier for mold that will run around the clock, constantly purifying the air in your home? Maybe you’re just after something that you can turn on at night to ensure quality sleep and a morning free of a sore, itchy throat and eyes? Perhaps you want an air purifier that can automatically sense when it needs to turn on based on your home’s air quality?

Different air purifiers will come equipped with a range of features, some designed to be a constant source of clean air, while others have built-in timers allowing you to turn them on when needed and forget they’re even there. In many cases, however, the best air purifier for mold is one that will automatically sense when mold spores are contaminating the air and turn on as needed.

This eliminates the guesswork of using your purifier intermittently, while avoiding the energy bills and replacement filters associated with running your air purifier twenty-four hours a day.

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