**Dallas AC: Is Spring Mold Inflaming Baby Asthma?**

By Franklin Everett Shaw

February 19, 2026

The air in Dallas in the spring isn’t just filled with the sweet scent of blooming bluebonnets. For many families, it’s a time of heightened anxiety, especially if they have infants prone to asthma. The culprit? Often, it’s not just the pollen count, but a hidden enemy lurking within your home’s air conditioning system: mold.

Mold spores thrive in the humid, dark environments of AC units, and Dallas’s climate provides the perfect breeding ground. These spores, when circulated through your home, can trigger asthma exacerbations in susceptible infants. But before you panic, know that you can take proactive steps to protect your little one. This guide will walk you through identifying potential mold issues in your AC, performing basic DIY cleaning, and knowing when to call in the professionals. We’ll also cover preventative measures and local resources to help you breathe easier this spring.

First, let’s talk about why this is a Dallas-specific problem. Dallas’s unique combination of high humidity and rapid temperature fluctuations creates an ideal environment for mold growth. The older housing stock in many Dallas neighborhoods, like Oak Cliff and Pleasant Grove, often have older AC systems that are more prone to mold accumulation due to age and potential leaks. The intense pollen season, with cedar fever being a major concern, further exacerbates respiratory issues, making infants even more vulnerable to mold-related asthma triggers.

So, how do you know if mold is hiding in your AC? Start with your senses. A musty, earthy odor emanating from your vents is a major red flag. Visually inspect the vents themselves. Look for dark spots or discoloration. Use a flashlight to peer into the vent as far as you can see.

Next, check the condensate drain line. This is usually a PVC pipe located near your outdoor AC unit. A clogged drain line creates standing water, a perfect breeding ground for mold. Carefully remove the cap (if there is one) and check for any blockage or visible mold growth. A wet/dry vacuum can be used to clear any clogs.

Now, for the DIY cleaning. Always turn off the power to your AC unit at the breaker box before you begin. This is crucial for your safety. For surface mold on vents, use a solution of one part bleach to ten parts water. Wear gloves and a mask to protect yourself. Wipe down the vents thoroughly and allow them to air dry completely before turning the AC back on.

For the evaporator coil (the part of the AC unit that cools the air), you can purchase a commercially available AC coil cleaner. Follow the manufacturer’s instructions carefully. These cleaners are designed to kill mold and mildew without damaging the coil. Be sure to choose a cleaner that is safe for use around children and pets.

However, there are times when DIY cleaning simply isn’t enough. If you find extensive mold growth, especially inside the AC unit itself, it’s time to call a qualified HVAC professional specializing in mold remediation. This is particularly important if you or your family members are experiencing persistent respiratory symptoms.

Don’t make the mistake of thinking a general handyman can handle mold remediation. You need a specialist who understands the intricacies of AC systems and the proper techniques for mold removal. Look for companies that are certified by organizations like the National Air Duct Cleaners Association (NADCA).

Here’s a step-by-step guide to finding a reputable HVAC mold remediation specialist in Dallas:

1. Ask for referrals: Talk to your pediatrician, family doctor, or neighbors. They may have recommendations for reputable companies.
2. Check online reviews: Look for companies with consistently positive reviews on sites like Google, Yelp, and Angie’s List.
3. Verify certifications: Ensure the company is certified by NADCA or other relevant organizations.
4. Get multiple quotes: Obtain quotes from at least three different companies to compare pricing and services.
5. Ask about their process: A reputable company will explain their mold remediation process in detail, including the steps they take to contain the mold and prevent its spread.
6. Check their insurance: Make sure the company has adequate liability insurance to cover any potential damage to your home.

Prevention is key to keeping mold at bay. Regularly change your AC filter, especially during peak pollen season. Consider using a HEPA filter, which is designed to trap even the smallest particles, including mold spores and pollen. In Dallas, with its heavy pollen load, changing your filter monthly during the spring is a good practice.

Maintain proper ventilation in your home. Use exhaust fans in bathrooms and kitchens to remove excess moisture. Consider using a dehumidifier, especially in areas prone to dampness.

Schedule regular AC maintenance. A qualified HVAC technician can inspect your AC unit for potential problems, including mold growth, and perform necessary cleaning and repairs. Aim for at least an annual checkup, ideally before the start of the cooling season.

Finally, remember that you’re not alone. Dallas has numerous resources available to support families dealing with asthma and allergies. The Asthma and Allergy Foundation of America (AAFA) has a local chapter in Dallas that provides education, support, and advocacy. Local hospitals like Children’s Health and UT Southwestern Medical Center also offer asthma management programs.

Don’t underestimate the impact of mold on your infant’s health. By taking proactive steps to inspect, clean, and maintain your AC system, you can create a healthier home environment and help your little one breathe easier this spring. Remember, when in doubt, consult with a qualified professional. Your child’s health is worth it.