How to Get Rid of Mold Spores in the Air - Pure Environmental (2024)

Most people don’t think about mold until they see or smell it.

Yet you may be surprised to learn that mold spores are everywhere –– both indoors and outdoors.

Small amounts of mold spores are always floating in the air, they’re just so minute we can’t see them with the naked eye.

So how can you get rid of mold spores in the air and keep them from contaminating your home?

The key is to be thorough and tactical.

In this guide, you will learn some tips and tricks you can do at home to prevent and get rid of mold spores in the air, and when it’s time to call in the pros.

Table of Contents

  • Mold Spores in the Air: What Are They and Where Do They Come From?
  • How to Remove Mold Spores From the Air
  • 2 Methods To Prevent Mold Spores From Settling
  • 3 Ways to Prevent Mold Spores From Turning Into Mold
  • Pure Environmental Can Help Get Rid of Mold Spores in the Air to Prevent Mold Growth From Occurring

How to Get Rid of Mold Spores in the Air - Pure Environmental (1)

Mold Spores in the Air: What Are They and Where Do They Come From?

Mold is a fungus that spreads by releasing spores.

Mold spores need specific conditions to grow into harmful mold: moisture and organic substrate (essentially, a material it can “eat”).

Thanks to many dark and rainy days, the concentration of mold spores found outdoors is higher in the fall months, while mold found indoors is highest in the winter.

Still, mold infestation is a problem more commonly found in homes.

The most likely areas for mold to grow in the home include:

  • Basem*nts
  • Attics
  • Bathrooms
  • Kitchens
  • Laundry rooms
  • Mudrooms

Anywhere you might find…

  • Moisture
  • Leaks
  • Dampness
  • Groundwater seepage; or
  • Humidity

…are likely places to find mold growing.

If you have mold growing in your home, it’s releasing spores in the air, which the World Health Organization (WHO) warns can create high enough concentrations to irritate your respiratory system, even if you don’t have mold-specific allergies.

How Long Do Mold Spores Stay in the Air?

A damp spot on a surface left unattended can cause mold to grow. How fast the mold grows will depend on the conditions. Mold can sometimes take a week or more to grow.

As mold grows, it continues to release spores.

It’s a vicious cycle, making it impossible to clean the air of mold spores completely.

Fortunately, mold spores at low concentrations usually don’t cause any harm unless you have a very sensitive allergy, although some molds are found to be at higher concentrations in certain geographical areas.

Can Mold Spores Be Removed From the Air Inside Your Home?

As unpleasant as it may be to imagine, mold spores can never be completely removed from the air inside your home.

There will always be a small amount of mold in the air, but there are ways to minimize the presence of mold including cleaning the air and preventing mold growth.

What Are the Benefits of Getting Rid of Airborne Mold Spores?

So if there will always be mold in the air, why bother trying to get rid of it?

There are a few key benefits to keeping the mold in your air to a minimum, including:

  1. Eliminating odors – Mold and mildew are the most common sources of that musty “basem*nt” smell. The smell is created by the offgassing byproduct of the mold feeding on the substrate. Eliminating airborne mold spores will keep your home smelling fresh and clean.
  2. Creating a healthy environment – Remove mold spores and mildew to improve the overall air quality of your home and protect you from the dangerous toxins that can aggravate:
    • Allergies
    • Asthma; and
    • Other respiratory illnesses
  3. Reducing the spreadMold remediation assures you that it won’t spread to other areas in your house, preventing future damage.
  4. Saving renovation costs – Mold can cause significant damage to your home over time. Reducing the concentration of mold in your home as much as possible means you’re less likely to see mold growth in the event of future moisture.
  5. Increasing home value – Home inspections almost always include mold assessments. A mold-free home means you can ask for a higher market price without making concessions or losing potential buyers to the idea of facing massive mold removal expenses.

How to Remove Mold Spores From the Air

Every house and building has mold spores, and it’s impossible to completely get rid of every mold spore.

Mold spores are floating in the air, landing on surfaces –– they’re everywhere.

Still, the most effective way to drastically reduce the number of mold spores in the air is by exchanging the air and keeping clean air flowing.

Indoor air quality restoration professionals like Pure Environmental utilize two powerful tools to efficiently decontaminate air and surface particles of the mold spores that can infest your home.

Both tools use high-efficiency particulate air (HEPA) filters that can help clear up to 99.97% of mold spores and other particulates from the air.

HEPA technology was created by the U.S. Army Chemical Corps to capture fine pollutants as tiny as 0.3 microns in size.

The HEPA filter is popular because it removes…

  • Bacteria
  • Dust
  • Chemicals
  • Mold spores; and
  • Allergens

… from the air.

You can be sure these machines using HEPA technology are thorough and effective, though the efficiency of the filter depends on the size and amount of particulates in your air.

Use a HEPA Filter Air Scrubber

Using an air scrubber with a HEPA filter can directly remove mold spores in the air.

An air scrubber is a powerful air and surface decontamination tool designed to safely remove:

  • Odors
  • Bacteria; and
  • Other volatile organic compounds

… from indoor environments.

For optimal results, you need to have a strong enough filter that it produces sufficient air changes per hour. This allows you to scrub particles from the air.

How Does a HEPA Filter Air Scrubber Help to Get Rid of Mold Spores in the Air?

A HEPA filter air scrubber sends out negative ions to attach themselves to particles in the air and on surrounding surfaces.

The scrubber pulls both the airborne and surface particles into the machine and sends them through the filter using internal fans.

The negative ions make the pollutants heavier and easier to trap inside the dense materials of the HEPA filter.

Then the air scrubber circulates the purified air back into the room, leaving you with improved indoor air quality.

Install an Air Wash HEPA Filtration System

Air washers and air scrubbers both improve indoor air quality. However, some air washers may increase humidity in addition to removing pollutants.

Installing an air washer that introduces humidity can help those with respiratory issues by making the air more humid as well as capturing irritating particles and allergens from the air.

When installed by professionals like Pure Environmental, an Airwash HEPA filtration system can be tied into the return air duct of your existing HVAC system to …

  • Divert
  • Clean; and
  • Introduce

…the air back into circulation.

Pure Environmental can also provide a free-standing unit to tailor any home air purification solution to suit you and your family’s needs.

Pure Environmental and Airwash HEPA filters can improve the quality of the air you breathe at home or in your office.

How Does an Air Wash HEPA Filtration System Help to Get Rid of Mold Spores in the Air?

An AirWash Filtrations System is a high-quality HEPA air purification scrubber that utilizes three stages of filtration:

  1. Pre-filters for debris
  2. HEPA filter technology; and
  3. Carbon filtration

These stages work to not only remove pollutants from the air but also the odors associated with those pollutants.

Dry, polluted air is pushed through a rotating water tray and enriched with humidity while mold spores and other pollutants are washed out in the water.

2 Methods to Prevent Mold Spores From Settling

Cleaning your air of floating mold spores is just a quick and temporary measure to keep them from settling.

As mold spores are naturally released into the air, the key is to keep them moving and circulating out of your home.

According to the Environmental Protection Agency (EPA), you can use these tips if your mold problem is relatively small in size (less than about ten square feet) or to prevent mold spores from settling.

Here are two methods that you can use without professional help to prevent mold spores from settling and making a home in your space.

#1: Increase Air Flow

Opening the windows and doors in your home often will discourage mold spores from settling.

Create a draft with open windows and leave them open for approximately 10 minutes. Then increase the temperature by turning up the thermostat. This will help remove moisture from the air and surfaces.

After three to four hours, the air can fill with moisture and mold spores again.

Open the windows for another 10 minutes and repeat the process of exchanging the indoor air with dry air from outside.

Continue this process every day to help limit airborne mold spores and keep them from settling.

#2: Ventilate Your Home

Incomplete and improper ventilation can cause mold to grow on:

  • Walls
  • Furniture; or
  • Other surfaces

To keep mold spores at bay, ventilate your home for at least 30 minutes each day.

Create cross-ventilation by opening interior doors along with windows on opposing sides of the house.

Open any windows you may have in your kitchen to keep it ventilated while cooking or running your dishwasher. Turn on the exhaust fan on your oven and if you have a door to your kitchen, keep it closed with the windows open, moving any moisture out of the area.

Close your bathroom door during showers and baths. Leave a window ajar and turn on your exhaust fan to let moist air out.

Use any other …

  • Fans
  • Air conditioning units; or
  • Appliances with exhaust fans

… to keep air ventilating throughout your home.

How to Get Rid of Mold Spores in the Air - Pure Environmental (4)

3 Ways to Prevent Mold Spores From Turning Into Mold

In addition to increasing the airflow and ventilation in your home to keep airborne mold spores from settling, consider these three ways to prevent harmful mold from growing.

#1: Keep Your Home Clean and Dry

You can keep mold at bay by being proactive. That means cleaning before or as soon as you see any beginning signs of mold growth.

Common early signs to look out for include:

  • Musty or damp odors emanating from your floors or walls
  • Mold illness includes symptoms like …
    • Increased allergies
    • Worsen asthma
    • Watery eyes
    • Skin irritation
    • Runny or itchy nose
    • Coughing; and
    • Sneezing

… and can be an early sign of mold exposure.

  • Water leaks or flooding can lead to …
    • Bulging or warped walls
    • Bubbles or cracked paint
    • Peeling wallpaper
    • Stained or discolored carpet

… which can indicate mold growing behind these areas where the water was.

So be sure to keep your home clean and dry to eliminate the opportunity for mold to grow.

#2: Regulate Humidity Levels

A humid environment is a breeding ground for mold because it needs moisture to grow and thrive.

So keeping humidity levels regulated in your home can help keep the airborne mold spores from attaching to surfaces like your walls or floors.

Condensation on your doors or windows is a sure sign of moisture and high humidity in your home which can lead to mold.

To regulate humidity levels in your home, consider investing in a dehumidifier.

With a good dehumidifier, you can eliminate any moisture by setting the desired humidity level in your home.

Set your dehumidifier to 50% humidity or less and place it in problem areas or rooms with visible mold to reduce or prevent mold growth.

#3: Use an Air Purifier

Air purifiers pull airborne mold spores through the machine, trapping them in the HEPA filter, and sending clean air back out.

You don’t need to hire a professional to use an air purifier.

You can find a quality air purifier at most home improvement or retail stores, but be sure to follow the manufacturer’s instructions for effective results.

Most air purifiers are designed to purify the air inside a single room and have a limited reach so the more you place throughout your home, the better.

Unlike air scrubbers or air washers, air purifiers can only clean the air and do not remove particles that may be attached to surfaces or add humidity to the air.

If you have a larger space or need a more comprehensive solution, hiring a team of experts like those at Pure Environmental can offer the best technology and methods available to quickly and safely remove mold contamination from your home.

How to Get Rid of Mold Spores in the Air - Pure Environmental (5)

Pure Environmental Can Help Get Rid of Mold Spores in the Air to Prevent Mold Growth From Occurring

One of the few drawbacks of living in the beautiful Pacific Northwest is the excess moisture, which if left untreated can lead to mildew and mold growth.

Whether you’re facing the clean-up after a flood or ongoing maintenance in your home, Pure Environmental can help with mold prevention and removal.

No two situations are the same and our experts have seen and removed it all.

Our powerful air and surface decontamination air scrubbers utilize cutting-edge technology designed to safely …

  • Oxidize
  • Neutralize; and
  • Improve

… the air quality in any indoor environment.

We also provide both residential and commercial installation services of a three-level AirWash HEPA air filtration system that effectively eradicates 99.97% of:

  • Mold spores
  • Allergens
  • Odor molecules
  • Viruses (including COVID-19); and
  • Other pathogens

You can choose to …

  • Adapt your current HVAC system; or
  • Implement a free-standing air purification system

… to cut through the toughest of mold issues.

At Pure Environmental, we’ve got you covered.

Contact us today for an estimate.

How to Get Rid of Mold Spores in the Air - Pure Environmental (2024)


How can I kill mold spores in the air? ›

Hydrogen peroxide kills mold spore on contact by breaking down proteins and DNA. It's normally used to clean mold on porous and non-porous surfaces. Ionized hydrogen peroxide can kill mold spores in the air, but it requires the use of a special fogging machine.

What pulls mold out of the air? ›

Any HEPA air purifier will remove mold spores from the air, though PECO-HEPA Tri-Power filters will destroy them. HEPA filters are a solution for removing a lot of mold spores from the air, for instance, if you are in the middle of a mold remediation.

Do air purifiers kill mold spores? ›

Using an air purifier can help improve indoor air quality by trapping mold spores. However, you will still be subjected to the other indoor air pollutants that were not trapped. Due to this fact, an air purifier may remove mold from the immediate environment but it will not get rid of all of the spores in your home.

Is it impossible to get rid of all mold and mold spores indoors? ›

It is impossible to get rid of all mold and mold spores indoors; some mold spores will be found floating through the air and in house dust. The mold spores will not grow if moisture is not present. Indoor mold growth can and should be prevented or controlled by controlling moisture indoors.

What naturally kills mold spores in air? ›

Tea Tree Oil

Tea tree oil, like clove oil, is known for being a natural antimicrobial cleaning agent that's comparable to commercially available disinfectants. Laboratory studies using tea tree oil have shown that evaporating tea tree oil in a room can temporarily decrease the concentration of airborne mold.

What naturally kills mold spores? ›

White vinegar is a mildly acidic product that cleans, deodorizes, and disinfects. It can also kill 82% of mold species, including black mold, on porous and non-porous surfaces. You can use it safely on most surfaces, and its offensive odor goes away quickly. Pour undiluted white vinegar into a spray bottle.

What happens if mold spores get in the air? ›

Exposure to mold can cause health effects in some people. Mold spores are always found in the air we breathe, but extensive mold contamination may cause health problems. Breathing mold can cause allergic and respiratory symptoms.

What's better for mold air purifier or dehumidifier? ›

But while dehumidifiers may be slightly better for dealing with mould by getting rid of the humidity it needs to grow, air purifiers are also useful for preventing allergic reactions to mould spores. Overall, if you have a mould problem at home, both of these two machines in tandem will make the most difference.

Do mold spores fly in the air? ›

Very tiny and lightweight, mold spores travel easily through the air. Most building surfaces can provide nutrients to support the growth of mold.

What kills mold spores best? ›

Use undiluted white vinegar on hard surfaces in kitchens and baths. A bleach solution also works to kill mold. Mix one cup of bleach in a gallon of water, apply to the surface and don't rinse. Mix a 50/50 solution of ammonia and water.

How long to run air purifier for mold? ›

To get the most out of a HEPA filter for mold spore removal, it should be allowed to run 24/7. This means you should check to see if the air purifier you buy is Energy Star certified, so it does not use too much electricity. Noise is another concern, especially if it will be running in an area where you sleep or work.

Does Lysol kill mold? ›

If you're wondering “does Lysol kill mold”, the answer is yes. The key ingredient in Lysol is hydrogen peroxide, which is known for being effective against mold and mildew. Lysol also contains potassium hydroxide, ethanol, and isopropyl alcohol. These ingredients, when combined, kill 99.9% of germs in your home.

Do mold spores ever go away? ›

Mold spores don't die and will grow back and multiply after a long time of inactivity once moisture is introduced. They can still cause health complications and need to be removed before they start to grow back and spread throughout your home or business.

Does opening windows help with mold? ›

It is also very important that there is adequate ventilation in the room. Open a window or door so the mold spores can escape, instead of staying locked in your home.

Can you ever fully get rid of mold? ›

According to the Environmental Protection Agency (EPA), “There is no practical way to eliminate all mold and mold spores in the indoor environment; the way to control indoor mold growth is to control moisture.” Even if you clean the mold, it will come back if the room is humid and poorly ventilated or if there is ...

What disinfectant kills mold spores? ›

Use a bleach solution of no more than 1 cup (8 ounces) household laundry bleach per 1 gallon of water to kill mold on surfaces.

How do you know if mold spores are in the air? ›

Signs of Black Mold in Air Vents
  1. Strong musty odors.
  2. Black spots around vents, ducts, or drip pans.
  3. Allergy symptoms.
  4. Difficulty breathing.
  5. Persistent headaches.
  6. Nausea or dizziness.
  7. Fatigue.
Dec 6, 2022

What prevents mold spores from spreading? ›

The mold spores will not grow if moisture is not present. Indoor mold growth can and should be prevented or controlled by controlling moisture indoors. If there is mold growth in your home, you must clean up the mold and fix the water problem.

How do you detox mold spores? ›

Some of the richest dietary sources of glutathione are spinach, avocados, asparagus, and okra. In addition to glutathione, quercetin and N-acetylcysteine support mold detox. If you're recovering from mold exposure, you may benefit from a concentrated dose of glutathione through supplement pills, inhalation or IV.

What eats mold spores? ›

Termites. Mold releases mycotoxins into the air—these draw termites to the area. As the damp conditions cause wood to rot and deteriorate, it becomes easier for termites to penetrate the wood and eat away at it.

What naturally eats mold? ›

  • Beetles.
  • Termites.
  • Ants.

What are signs of mold sickness? ›

Some people are sensitive to molds. For these people, exposure to molds can lead to symptoms such as stuffy nose, wheezing, and red or itchy eyes, or skin. Some people, such as those with allergies to molds or with asthma, may have more intense reactions.

What do mold spores need to survive? ›

Mold requires water, food, and oxygen to grow. It also requires an environment with a temperature it can survive. While mold cannot spread without these conditions, its spores may survive in a dormant state until conditions are suitable. Temperature: Most molds cannot grow below 40° F.

Will running a dehumidifier prevent mold? ›

Mould will easily grow and spread if the right conditions are present. So, dehumidifiers don't kill mould, but they can help to prevent it from growing inside your home by reducing humidity. However, the best way to deal with it is to get rid of its source.

Can I leave my dehumidifier on all night? ›

Can I leave the dehumidifier running at night? Yes, we recommend using a dehumidifier 24hrs, however, be aware that there will always be a noise generated from the machine when it is operating.

Will dehumidifier remove mold spores in the air? ›

Simply put, dehumidifiers cannot remove mold. The machine is designed to remove moisture in the air. This means that if there is already a presence of mildew in a home or building, it will not be removed just by working to reduce the moisture after the fact.

How long do spores stay in the air? ›

Spores in the atmosphere may survive for days or weeks or possibly longer (31–34).

What kills black mold instantly? ›

Getting rid of black mold with white vinegar

'Bleach will kill mold spores growing across a hard surface, but if the mold has extended below the surface, then white vinegar is the best choice,' she says. 'The vinegar will penetrate to kill the mold and mildew at the root, preventing it from regrowing.

What time of day are mold spores released? ›

Mold spores count is highest at night, especially when it's foggy, damp or rainy. Upsetting these mold spores send them into the air, triggering an allergic reaction in people who have an allergy to mold.

What kind of vinegar kills mold spores? ›

While a significant mold infestation is best handled by a professional restoration company, you have a powerful weapon against occasional mold growth in your kitchen cupboard: white vinegar. This humble household staple can kill more than 80% of mold species, including hazardous black mold.

Should you run an air purifier all day? ›

Since air pollution is a pervasive and continuous problem, it's best to leave your air purifier on all day. There are no perceived drawbacks to keeping your unit running all the time, and if the filters are changed on time it can help to reduce pollutants in the home.

Can you leave an air purifier on 24 7? ›

Leave your air purifier on all day, if possible. It will remove dirt, allergens, smoke, and odors from your indoor air. The longer you can leave it on, the cleaner your air will be. There's no clear downside to leaving your air purifier on 24/7.

How many hours a day should an air purifier run? ›

How Long To Run Your Air Purifier? So to recap, run your air purifier unit for at least 12 hours a day. This is a good rule of thumb. Again, it's okay if you don't stick to this schedule every day, but be aware that the more you run your air purifier the fresher and cleaner it will be all year long.

Do Clorox wipes kill mold spores? ›

Yes Clorox products such as Clorox Disinfecting Bleach and Tilex Mold & Mildew Remover both use bleach (sodium hypochlorite) as the active ingredient, which is effective at killing mold.

Is vinegar or Lysol better for mold? ›

Bleach and vinegar can both kill mold, but vinegar is much more effective for removing mold from porous materials. This is because bleach only kills mold spores on the surface of affected materials. Vinegar will penetrate porous materials and kill the mold at the roots.

Does hydrogen peroxide kill mold? ›

Research has found hydrogen peroxide has the potential to kill bacteria, viruses, fungi, and mold spores. When applied to these microorganisms, hydrogen peroxide kills them by breaking down their essential components like their proteins and DNA .

What cleaner kills mold spores? ›

Bleach kills virtually every species of indoor mold that it comes into contact with including mold spores which leaves a sanitized surface making it resistant to future mold growth.

Do mold spores stay in your lungs? ›

It's also possible for mold to form a ball in your lungs. This condition is called aspergilloma when caused by an Aspergillus mold. The ball most often stays in your lungs but can lead to tissue damage. Symptoms commonly include shortness of breath, cough, or coughing up blood.

Does Lysol get rid of mold spores? ›

If you're wondering “does Lysol kill mold”, the answer is yes. The key ingredient in Lysol is hydrogen peroxide, which is known for being effective against mold and mildew. Lysol also contains potassium hydroxide, ethanol, and isopropyl alcohol. These ingredients, when combined, kill 99.9% of germs in your home.

What is the strongest mold killer? ›

Final Verdict. Our top pick is the RMR-86 Instant Mold and Mildew Stain Remover for its versatility and effectiveness on nearly every surface. For those looking for an eco-friendly mold remover with natural ingredients, we recommend CLR Mold and Mildew Clear.

How do I test my room for mold spores? ›

You'll likely use a mold test kit with tape strips to lift a sample for surface testing. Or, you might use a swab to send a sample into a lab or spread a sample on a petri dish for evaluation.

Do mold spores float in the air? ›

Mold spores are very tiny and light-weight so they float in the air for a long time. Common places to find mold growth are in the bathrooms, kitchens, basements, and the heating, ventilation and air conditioning (HVAC) unit.


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