Is Your Air Making You Sick? How to Improve Indoor Air Quality in Texas

Have you ever noticed your home feels a little stuffier or less “fresh” in winter? That’s because when we close up our homes to keep the heat in, we also trap pollutants like dust, pet dander, and mold spores inside. Over time, that buildup can affect your comfort — and even your health.

Here’s what’s really going on with your indoor air quality (IAQ) and what you can do to keep the air in your Houston home clean, healthy, and breathable year-round.

1. Why Indoor Air Quality Gets Worse in Winter

During the colder months, Texas homeowners tend to seal up windows and doors to keep the warmth inside. Unfortunately, that means indoor pollutants have nowhere to go.

Common culprits include:

• Dust and pet dander that circulate through your HVAC system

• Mold and mildew growth in damp areas or ductwork

• Volatile organic compounds (VOCs) from cleaning products, paint, and furniture

• Dry air, which irritates your skin, eyes, and sinuses

In fact, indoor air can be up to five times more polluted than outdoor air according to the EPA — and that’s before allergy season kicks in.

2. The Hidden Health Effects of Poor Indoor Air

Poor indoor air quality isn’t just uncomfortable — it can cause or worsen health symptoms, especially for kids, older adults, and anyone with asthma or allergies.

You might notice:

• Headaches or dizziness

• Fatigue and dry throat

• Worsened allergy or asthma symptoms

• More frequent coughing or congestion

Long-term exposure can even increase the risk of respiratory illnesses.

3. Easy Ways to Improve Indoor Air Quality

Here are a few simple, low-cost ways to breathe easier:

• Improve Ventilation

Open windows when weather allows or use exhaust fans in kitchens and bathrooms to remove moisture and stale air.

• Change Your Air Filters Regularly

Your HVAC filters are your home’s first line of defense. Replace them every 1–3 months to keep dust and allergens out of circulation.

• Use a High-Quality Filter or Air Purifier

Upgrade to a high-MERV filter or install a whole-home air purifier. Purifiers that use active air cleaning technology (like ionization or UV light) can help neutralize bacteria, mold, and viruses.

• Clean and Maintain Your HVAC System

Dust and debris in your ductwork can spread pollutants throughout your home. Schedule professional duct cleaning every few years or sooner if you notice excessive dust or musty smells.

• Choose Natural Cleaning Products

Many cleaning sprays and candles release VOCs. Look for “green,” “low-VOC,” or plant-based products instead. They’re safer for your lungs and your pets.

• Add Air-Purifying Houseplants

Plants like snake plants, peace lilies, and spider plants naturally filter toxins. They’re also a great way to boost humidity and add life to your home.

House plants help purify your air

4. Test Your Air Quality (and Your Detectors)

Don’t forget the safety basics:

• Test smoke and carbon monoxide alarms monthly.

• Replace batteries at least once a year.

• Consider installing an IAQ monitor to track humidity, CO₂, and particulate levels.

5. When to Call the Pros

If you’ve cleaned, filtered, and ventilated but still notice odors, excessive dust, or health symptoms, it might be time to bring in an HVAC professional. Our technicians can inspect your ductwork, recommend the right air purification system, and make sure your home’s air is as clean and safe as possible.

Breathe Easier with Velocity Air

Your family deserves clean, healthy air — and maintaining good indoor air quality doesn’t have to be complicated.

At Velocity Air A/C & Heating, we provide Houston HVAC maintenance, air purification solutions, and duct cleaning services to keep your home safe and comfortable all year long.

Final Thoughts

At Velocity Air A/C & Heating, if you are having trouble with your HVAC system, our team is here to help. Whether you need routine maintenance, quick repairs, or a full system replacement, we will keep your HVAC running efficiently and safely, so your home stays comfortable no matter the Texas weather. We provide expert Houston HVAC repair services, Houston HVAC installation services, and Houston HVAC preventive maintenance to keep your system running smoothly and efficiently all season long. Velocity Air A/C & Heating is proud to provide Houston HVAC services, including maintenance, emergency repair, and installation, to the Greater Houston Area.

– Your friends at Velocity Air A/C and Heating