Atlanta AC: Is Duct Mold Fueling Summer Eczema?

By Franklin Everett Shaw

January 4, 2026

It’s August in Atlanta. The air hangs thick and heavy, a blanket of humidity clinging to everything. You step inside, seeking refuge in the cool embrace of your air conditioning. But instead of relief, you’re greeted by an unwelcome guest: an eczema flare-up. Could the very system meant to provide comfort be contributing to your skin woes? The answer, unfortunately, is often yes, and the culprit might be lurking in your AC ducts: mold.

The connection between indoor air quality and skin conditions like eczema is often overlooked. But in a humid environment like Atlanta, the conditions are ripe for mold growth within AC systems. This mold then releases spores into the air, which can trigger allergic reactions and exacerbate eczema symptoms. Let’s dive into how to tackle this problem head-on, specifically for Atlanta residents.

First, identifying mold in your AC system is crucial. Don’t just assume it’s there. Look for visual signs. Check around the vents for dark spots or discoloration. A musty odor emanating from the vents when the AC is running is another strong indicator. Pay close attention to the area around the evaporator coil, as this is a prime location for mold growth due to condensation. Use a flashlight to get a better view.

If you suspect mold, consider a DIY test. You can purchase mold test kits at most hardware stores in the Atlanta area, like Home Depot or Lowe’s. These kits usually involve collecting a sample from a surface or the air and sending it to a lab for analysis. Follow the instructions carefully to ensure accurate results.

Now, let’s talk about DIY duct cleaning. While professional cleaning is often recommended, there are steps you can take yourself, especially for minor mold issues. Safety first: always turn off the AC unit at the breaker before starting any cleaning. Wear a mask, gloves, and eye protection to avoid inhaling mold spores or irritating your skin.

Here’s a step-by-step guide for Atlanta residents:

1. Gather your supplies: You’ll need a vacuum cleaner with a hose attachment, a brush attachment, a screwdriver, mold-killing cleaner (specifically designed for HVAC systems – available at most hardware stores in Atlanta), and clean cloths.
2. Remove vent covers: Use a screwdriver to remove the vent covers throughout your home. Wash them with soap and water, then disinfect with a mold-killing cleaner. Let them dry completely before reattaching.
3. Vacuum the ducts: Use the vacuum hose and brush attachment to thoroughly clean the inside of the ducts as far as you can reach. Pay special attention to areas where you see visible mold.
4. Apply mold-killing cleaner: Spray the mold-killing cleaner into the ducts, following the manufacturer’s instructions. Be careful not to oversaturate the ducts.
5. Reassemble: Once the ducts are dry, reattach the vent covers.

Important Note: DIY cleaning is best suited for surface mold and preventative maintenance. If you have a severe mold infestation, it’s crucial to call in a professional mold remediation company.

Speaking of professional mold remediation, Atlanta has several reputable companies specializing in AC duct cleaning and mold removal. Look for companies that are certified by organizations like the Institute of Inspection, Cleaning and Restoration Certification (IICRC). These certifications ensure that the technicians are properly trained and follow industry best practices.

When choosing a professional, get multiple quotes and ask about their process. A reputable company will typically:

• Conduct a thorough inspection to assess the extent of the mold problem.
• Use specialized equipment, such as HEPA vacuums and duct-cleaning machines, to remove mold spores.
• Apply antimicrobial treatments to prevent future mold growth.
• Provide documentation of their work, including before-and-after photos.

Be wary of companies that offer extremely low prices or make unrealistic promises. Mold remediation is a complex process, and cutting corners can lead to ineffective results and potential health risks.

Now, let’s shift our focus to preventative measures. Preventing mold growth in the first place is always the best approach. Here are some tips specifically tailored for Atlanta homeowners:

• Regular AC maintenance: Schedule annual AC tune-ups with a qualified HVAC technician. They can clean the coils, check for leaks, and ensure that the system is functioning properly.
• Change your air filters regularly: Replace your air filters every 1-3 months, depending on the type of filter and the air quality in your home. This helps to remove dust, pollen, and other particles that can contribute to mold growth.
• Control humidity: Use a dehumidifier to keep the humidity level in your home below 50%. This is especially important during the humid summer months in Atlanta.
• Ensure proper ventilation: Make sure your home is properly ventilated to prevent moisture buildup. Use exhaust fans in bathrooms and kitchens, and open windows when the weather permits.
• Address leaks promptly: Repair any leaks in your roof, plumbing, or AC system immediately. Water damage can create a breeding ground for mold.

Another common mistake is neglecting the condensate drain line. This line carries water away from the AC unit, and if it becomes clogged, it can lead to water damage and mold growth. Regularly flush the drain line with a mixture of bleach and water to keep it clear. You can find instructions on how to do this online or consult with an HVAC technician.

Furthermore, consider the type of AC system you have. Older systems are often less efficient and more prone to mold growth. If you’re considering upgrading your AC system, look for models with features like UV lights, which can help to kill mold spores.

Finally, remember that managing eczema is a multi-faceted approach. While addressing mold in your AC system can significantly improve your indoor air quality and reduce eczema triggers, it’s also important to:

• Moisturize regularly: Apply a fragrance-free moisturizer to your skin several times a day, especially after showering or bathing.
• Avoid harsh soaps and detergents: Use gentle, hypoallergenic soaps and detergents that are free of dyes and perfumes.
• Identify and avoid other triggers: Keep a journal to track your eczema flare-ups and identify potential triggers, such as certain foods, fabrics, or environmental factors.
• Consult with a dermatologist: A dermatologist can help you develop a personalized treatment plan to manage your eczema symptoms.

In conclusion, the humid Atlanta climate presents unique challenges when it comes to indoor air quality and eczema. By taking proactive steps to identify and address mold in your AC system, you can create a healthier home environment and minimize eczema triggers. Remember to prioritize safety, seek professional help when needed, and maintain a consistent skincare routine. Don’t let your AC become a source of discomfort; instead, make it a tool for creating a cool, clean, and eczema-friendly oasis in your Atlanta home.