A new year is the perfect time to reset routines—and that includes the air you breathe at home. Indoor air can contain a mix of dust, allergens, pet dander, mold spores, VOCs (chemical gases), and humidity-related pollutants that build up over time. In San Antonio, where we deal with long cooling seasons, periodic cedar/pollen surges, humidity swings, and lots of time spent indoors, indoor air quality (IAQ) improvements can make a noticeable difference in comfort, sleep, and overall wellness.

At Cowboys Air Conditioning & Heating, we help homeowners across San Antonio and surrounding areas improve comfort through HVAC service, ductwork solutions, and indoor air quality upgrades. Below are practical, realistic “IAQ resolutions” you can start now—plus when it’s smart to call a professional.

If you’d like an IAQ assessment or want to schedule service, call (210) 495-7771.

---

1) Choose Household Products That Don’t Pollute Your Air

Many homes unintentionally “trap” airborne irritants by using products that release strong chemicals. A few simple swaps can reduce indoor pollutants quickly:

• Avoid heavy chemical air fresheners and deodorizers

• Choose low-odor or fragrance-free cleaners when possible

• Store paint, solvents, and harsh chemicals in an outdoor storage area (not a closet or laundry room)

• When buying new furniture, rugs, or drapes, look for low-VOC options and air them out before bringing them into bedrooms

Why it matters: VOCs can linger in your indoor air for weeks or months, especially in tightly sealed homes.

---

2) Be Smart With Houseplants (Yes, They Can Affect IAQ)

Houseplants can make a home feel calm and inviting, and many people love the mood boost they provide. But indoor plants can also contribute to IAQ issues if they’re overwatered or placed in poorly ventilated spaces.

Best practices:

• Don’t overwater—this is a common source of mold growth

• Use well-draining soil and clean pots/trays regularly

• If you notice a musty smell near plants, reduce watering and improve airflow

A few plants are great—just keep them clean and balanced with proper ventilation.

---

3) Improve Your Home’s “Building Envelope” (Air Sealing + Insulation)

Your home’s building envelope—windows, doors, attic, walls, and other barriers—directly affects comfort, energy efficiency, and IAQ. If your home has air leaks, you may be pulling in dust, outdoor allergens, and humidity without realizing it.

New-year goal: Reduce drafts and uncontrolled air leaks, especially around:

• Attic access points

• Door frames and weather stripping

• Older windows

• Gaps around plumbing and wiring penetrations

In San Antonio, air sealing and insulation improvements can help your HVAC system run cleaner and steadier, which supports better indoor air quality overall.

---

4) Upgrade Your Thermostat (And Use It to Support Cleaner Air)

A programmable or smart thermostat can improve comfort, reduce energy waste, and help stabilize indoor conditions—especially when paired with regular HVAC maintenance and good filtration.

Helpful thermostat strategies:

• Maintain steady temperatures instead of huge swings (less strain on HVAC)

• Use scheduling to avoid over-conditioning an empty home

• Consider smart thermostats with remote sensors for more accurate readings

Better control usually means better comfort—and often fewer humidity and air quality problems.

---

5) Schedule Seasonal HVAC Tune-Ups (Spring + Fall)

Your HVAC system moves and filters large volumes of air—so if the system is dirty, neglected, or out of balance, IAQ can suffer.

A seasonal tune-up helps by:

• Removing dust/grime buildup that impacts performance

• Checking airflow and system health

• Reducing the chance of breakdowns during extreme weather

• Catching small issues before they turn into expensive repairs

For homes with fuel-burning equipment, professional inspection is also important for safe operation.

---

6) Use the Right HVAC Filter (And Replace It Regularly)

If you want a single, high-impact IAQ resolution, start here.

Filter tips for most homes:

• Use a thicker, pleated filter when your system supports it

• Check the filter monthly during heavy-use seasons

• Replace it as soon as you see visible buildup (don’t wait until it’s completely clogged)

Quick note on MERV ratings

MERV ratings measure how well a filter captures particles. Higher isn’t always better if your system isn’t designed for it—too restrictive can reduce airflow and strain the blower. A pro can recommend the safest high-performance option for your equipment and your home’s needs.

---

7) Inspect Your Ductwork (Leaks, Dust, and Hidden Problems)

Ductwork is a huge part of indoor air quality—especially if your ducts are older or have never been inspected.

You may need duct inspection if you notice:

• Rooms that never feel the same temperature as others

• Excessive dust in the home

• Musty odors when the HVAC runs

• Allergy flare-ups that seem worse indoors

• Higher-than-expected energy bills

Duct cleaning

Even clean homes can build up dust in ductwork over time, especially if filters weren’t changed consistently in the past. That buildup can affect airflow and recirculate particles into living spaces.

Duct sealing

Leaky ducts can pull in dust, insulation fibers, and humidity from unconditioned areas—and waste conditioned air. Sealing ducts can support better comfort and cleaner air by keeping airflow where it belongs.

Duct repair/replacement

If ducts are damaged, poorly designed, or very old, repair or replacement may be the best long-term move—especially if comfort issues persist year after year.

---

8) Improve Ventilation (Without Losing Efficiency)

Sealing and insulation are great for efficiency, but a tighter home can trap indoor pollutants. If you don’t have enough fresh air exchange, indoor air quality can decline.

Ventilation solutions can include:

• Controlled fresh-air systems

• Whole-home ventilation strategies that don’t rely on random leaks

• Energy recovery options that help keep indoor comfort stable

The goal is balanced, healthy airflow—not drafts.

---

9) Add Whole-Home Air Purification (Better Than Single-Room Units)

Portable air purifiers can help in bedrooms or nurseries, but many homeowners want a solution that treats the air throughout the home.

Whole-home options can target:

• Dust and airborne allergens

• Odors and VOCs

• Microbial growth and particles moving through the HVAC system

A professional can recommend equipment that matches your home size, airflow needs, and specific concerns (allergies, pets, smoke, etc.).

---

10) Control Humidity (A Big Deal in South Texas)

Humidity has a major impact on comfort and air quality. Too much humidity can promote mold growth and musty odors. Too little can cause dry skin, throat irritation, and discomfort.

A good target range for many homes: roughly 30%–60% RH, with many people preferring 40%–50% for comfort and sleep.

Depending on the season and your home, solutions may include:

• Dehumidification support during humid months

• Drain line maintenance to prevent moisture problems

• Ventilation improvements to reduce indoor humidity buildup

---

11) Use Ceiling Fans the Right Way (And Keep Them Clean)

Ceiling fans help circulate air, reduce hot spots, and improve comfort—especially in San Antonio summers. But dusty fan blades can also distribute allergens.

New-year habit: dust blades regularly and use the proper direction:

• Winter: clockwise at low speed

• Summer: counterclockwise at higher speed

---

Breathe Easier This Year With Cowboys Air Conditioning & Heating

Indoor air quality improvements don’t have to be overwhelming. Start with the basics—filters, maintenance, humidity control—and then build toward bigger upgrades like duct sealing, ventilation, or whole-home purification if needed.

If you want help improving indoor air quality in San Antonio, TX and surrounding areas, Cowboys Air Conditioning & Heating is ready to help.

Call (210) 495-7771 to schedule your appointment.