New Orleans Air: Is AC Mold Wrecking Lungs?

By Franklin Everett Shaw

July 31, 2025

The air hangs thick and heavy, a familiar blanket in New Orleans. But sometimes, that humidity breeds more than just discomfort; it cultivates a hidden enemy within our very homes: mold in our AC units. It’s not just about a musty smell; it’s about your health, your family’s well-being, and the air you breathe every single day. Ignoring it is not an option.

Mold thrives in the dark, damp environments that AC units provide, especially in a city like New Orleans where humidity levels often reach near saturation. This isn’t just a cosmetic issue; it’s a serious health hazard that can trigger allergies, asthma, and other respiratory problems. Let’s dive into how to identify, address, and prevent this silent threat.

First, let’s talk about identifying the problem. Don’t wait for the obvious black spots. Start with your nose. A musty, earthy odor emanating from your vents is a major red flag. Next, visually inspect the easily accessible parts of your AC unit. This includes the air vents, the area around the indoor unit, and even the drip pan. Use a flashlight to get a better look. Look for discoloration, staining, or any visible growth.

DIY Inspection: A Step-by-Step Guide

Safety First: Turn off your AC unit at the breaker. This is crucial to prevent electrical shock.
Vent Check: Remove the vent covers and inspect inside the ductwork with a flashlight. Look for any signs of mold growth.
Filter Examination: Remove and inspect your AC filter. A dirty or moldy filter is a breeding ground for spores. Replace it immediately.
Drip Pan Inspection: Locate the drip pan (usually near the indoor unit). Check for standing water and any signs of mold.
Coil Check (Advanced): If you’re comfortable, carefully remove the access panel to the evaporator coils. These coils are a prime location for mold growth. Be extremely careful not to damage the delicate fins.

If you find mold, don’t panic. Small, isolated areas can often be cleaned yourself. However, large infestations or mold in hard-to-reach areas require professional remediation.

DIY Cleaning: A Cautious Approach

Protective Gear: Wear gloves, a mask (N95 or higher), and eye protection.
Cleaning Solution: Mix a solution of 1 part bleach to 10 parts water. Never mix bleach with ammonia or other cleaning products.
Application: Apply the solution to the affected areas with a sponge or cloth. Do not saturate the area.
Scrubbing: Gently scrub the moldy areas to remove the growth.
Rinsing: Rinse the cleaned areas with clean water.
Drying: Thoroughly dry the cleaned areas with a clean cloth or towel. You can also use a fan to speed up the drying process.
Filter Replacement: Replace your AC filter with a new, high-quality filter.

Important Considerations:

Porous Materials: If mold is growing on porous materials like drywall or insulation, these materials may need to be removed and replaced.
Source Identification: Cleaning the mold is only half the battle. You need to identify and address the source of the moisture that is causing the mold growth. This could be a leaky pipe, poor ventilation, or high humidity levels.

Now, let’s talk about professional remediation. If you’re dealing with a significant mold problem, especially if it’s widespread or you’re experiencing health symptoms, it’s time to call in the experts. Look for companies in New Orleans that are licensed and certified in mold remediation. They have the equipment and expertise to safely and effectively remove mold and address the underlying moisture issues.

Finding the Right Professional in New Orleans

Licensing and Certification: Ensure the company is licensed and certified by a reputable organization.
Experience: Choose a company with a proven track record of successful mold remediation projects in New Orleans.
References: Ask for references from past clients.
Detailed Assessment: The company should conduct a thorough assessment of your home to identify the extent of the mold problem and the source of the moisture.
Clear Plan: They should provide you with a detailed plan outlining the remediation process, including the steps they will take to remove the mold and prevent it from returning.
Insurance: Verify that the company has adequate insurance coverage.

Preventing Mold Growth: A Proactive Approach

Prevention is always better than cure. Here are some practical steps you can take to prevent mold growth in your AC unit:

Regular Filter Changes: Change your AC filter every 1-3 months, or more often if you have pets or allergies.
Maintain Proper Airflow: Ensure that your vents are not blocked by furniture or other objects.
Control Humidity: Use a dehumidifier to keep the humidity levels in your home below 60%.
Regular AC Maintenance: Schedule regular maintenance for your AC unit with a qualified technician. This includes cleaning the coils, checking for leaks, and ensuring that the unit is functioning properly.
Address Leaks Promptly: Repair any leaks in your home immediately to prevent moisture buildup.
Improve Ventilation: Ensure that your home is properly ventilated, especially in bathrooms and kitchens.

Health Risks of Mold Exposure

Prolonged exposure to mold can lead to a variety of health problems, including:

Allergic Reactions: Sneezing, runny nose, itchy eyes, skin rashes.
Asthma: Worsening of asthma symptoms, such as wheezing, coughing, and shortness of breath.
Respiratory Infections: Increased risk of respiratory infections, such as bronchitis and pneumonia.
Other Health Problems: Headaches, fatigue, and neurological problems.

People with allergies, asthma, or weakened immune systems are particularly vulnerable to the health effects of mold exposure. If you suspect that you are being exposed to mold, consult with your doctor.

Resources for New Orleans Residents

Louisiana Department of Health: Provides information on mold and indoor air quality.
Local Mold Testing and Removal Services: Search online for licensed and certified mold remediation companies in New Orleans.
EPA (Environmental Protection Agency): Offers guidance on mold cleanup and prevention.

Don’t let mold take hold in your New Orleans home. By taking proactive steps to identify, address, and prevent mold growth in your AC unit, you can protect your health and ensure a comfortable and healthy living environment. Remember, a little vigilance goes a long way in the fight against this silent invader.