Is it Allergies or Mold?

Mold on insulation

Understanding What Mold Is

Mold, a type of fungus, thrives in damp or decaying organic matter and cellulose materials. It can grow both indoors and outdoors. While mold itself is not inherently toxic, certain types can produce spores or cell fragments that release toxins, inflammatory substances, and allergens. Exposure to mold spores triggers immune responses, leading to allergy symptoms such as watery eyes, scratchy throat, runny nose, sinus headaches, etc. 


Mold Allergy Symptoms

The symptoms of mold allergies vary based on individual immune responses. Common types of mold associated with allergies include:

  • Alternaria
  • Aspergillus
  • Basidiospores
  • Cladosporium
  • Penicillium

When mold spores enter the nose or throat, they can cause allergy symptoms like sneezing, itchy eyes, and a runny nose. For some individuals, mold can also trigger asthma symptoms, including shortness of breath and chest tightness. 

Causes of Mold Allergy

Indoor mold typically thrives when there is a heat and humidity imbalance. As mold spores travel through the air, they form new colonies, increasing indoor mold coverage. The spread of those mold spores is aided by our air handlers. Just think of it. The AC systems in Florida are made of fiberglass. There is hot and cold air exchanged in there. There is humidity. It is a perfect environment for mold growth!


Although mold spores are present everywhere, they flourish when environmental conditions are not maintained (<76º and less than 60% relative humidity) or when a water event happens. Mold growth can easily happen, especially when organic matter provides a suitable surface for growth.


Mold in HVAC

Treatment and Prevention

Minimizing exposure to mold is crucial for managing symptoms. Here are some steps to consider:

  1. Reduce Dampness: Address any sources of excess moisture in your home. A dehumidifier should be the most important appliance in your home!
  2. Ventilation: Ensure proper ventilation in damp areas. IE, bathrooms are properly exhausted, air handler is running efficiently, ceiling fans always stay on, etc.
  3. Maintain Your AC’s Filters: There is so much mold, pollen, dust, dead skin cells, pet dander, etc in our air. Be nice to your air handler and switch your filters monthly! We recommend purchasing a MERV 8 to MERV 13. They filter down to a specific size of micron to prevent allergens from circulating in your home. Don’t go above a MERV 13, because then you can suffocate your air handler and not allow you house to breathe.
  4. Medications: Talk to your Doctor and see if adding antihistamines and nasal corticosteroids to your daily routine may help alleviate your symptoms.
  5. Consult a Specialist: Contact us today for air quality testing or your home or office. That way if your symptoms persist, you can take those results to an allergist or immunologist.

Remember, while mold allergies can be bothersome, taking proactive measures can significantly improve your quality of life.

Have you been having watery, itchy eyes? How about a scratchy throat? Or even a runny nose? It could be seasonal allergies, or it could be exposure to mold that is causing your symptoms. Please reach out to us, and we will be able to help you figure out what your best corse of action should be. We can be reached at (904) 397-4030 for North Florida, (813) 606-6668 for Central Florida, and (239) 961-9995 for South Florida.

Request an Appointment

Get an Estimate

By submitting, you authorize Mold Masters to send messages via text or email with offers & other information, possibly using automated technology, to the number you provided. Message/data rates may apply. Reply HELP for help or STOP to cancel. Consent is not a condition of purchase. Use is subject to terms.

Share this article

Mold-covered white wall with two framed pictures; black flooring.
November 22, 2025
Learn the crucial steps for storm damage mold inspection and safe remediation in Florida.⛈️
Mold infestation on walls and ceiling of a home.
November 14, 2025
Get the facts on mold removal techniques and avoid common misconceptions that cause delays. 📋
Kitchen renovation with exposed wall studs, cabinets, and damaged plaster.
November 8, 2025
Spot mold early with expert tips from Mold Masters. 🌴 Learn the warning signs, health risks, and when to call for safe, professional remediation.
Hand holding a moisture meter over a dark water stain on a wooden floor.
November 1, 2025
⚠️ Florida’s humidity makes mold a hidden threat to homes and businesses. 🏠💨 Discover how timely inspections from Mold Masters safeguard your health, prevent costly damage, and bring peace of mind across North, Central, and South Florida. 🌞🌧️
White door frame with debris on the floor, likely during renovation.
October 29, 2025
Fast action after water damage prevents mold 🌴. Learn how Mold Masters protects Florida homes with expert cleanup & trusted remediation 💪
A person lifting a layer of damp wall covering, revealing mold on the underlying surface.
October 21, 2025
🌴 Mold & Insurance in Florida: Learn how coverage works, what mold remediation is included ✅, what’s not ⚠️, and how to protect your home 🏠 from hidden risks. Get expert tips from Mold Masters! 💚
A wall heavily covered with mold, near a partially open door and a towel hook.
October 15, 2025
🌴 Florida’s humidity invites mold—protect your business with expert inspections, eco-friendly remediation 🧪, and actionable guidance from Mold Masters. 💼 Breathe easy and safeguard your bottom line!
orange mold on a rug
October 12, 2025
Black, green, white, or orange? 🎨 Mold color can hint at type—but not danger level. Learn what matters most for safe removal in Florida. 🌴⚠️
Woman on porch pulling green hoses, facing a white house with brick steps and a window.
October 9, 2025
Indoor air can hide mold, allergens & toxins 🌬. Discover how expert testing helps Florida families breathe easier and stay safe at home 🏡🛡️
UV Light for mold prevention
September 28, 2025
UV lights claim to fight mold 💡, but does it work in Florida’s climate? Learn the risks, limits, and safer ways to protect your home. 🌴🛡️