The 30-Day Indoor Air Quality Challenge for Louisiana Homeowners

If you live in Shreveport or Bossier City, you already know what Louisiana air can do to a house. The humidity alone is enough to make your home feel like a terrarium by July. Add in dust, pollen, pet dander, and whatever’s floating around after a rainstorm, and the air inside your home can end up worse than what’s outside.

That’s not an exaggeration. Studies consistently show that indoor air quality in Shreveport is often two to five times more polluted than outdoor air, and in a climate like ours, that gap can be even wider.

The Bossier City and Shreveport HVAC service teams at SBC Cooling + Heating see the effects of this every day, and the good news is that improving your indoor air quality and beyond doesn’t require a major project. It just requires consistency. This 30-day challenge breaks it down into manageable weekly tasks so you’re not overwhelmed, just making steady progress.

Week 1: Start With Your Filter

Go find your air filter right now. Pull it out and look at it. If it’s gray, clogged with dust, or you can’t remember the last time you changed it, that’s your Week 1 task.

A clogged filter doesn’t just hurt your indoor air quality, it makes your entire HVAC system work harder than it needs to. In Louisiana’s climate, where your system runs hard for eight or nine months out of the year, that extra strain adds up fast.

What to do:

• Replace your filter with a MERV 8 or higher rated option for better particle capture
• Set a calendar reminder to check it again in 30 days (monthly checks are ideal in high-humidity climates)
• Note your filter size on a sticky note inside the cabinet so you always buy the right one

If you have pets or anyone in the house with allergies or asthma, consider a MERV 11 or 13. You’ll notice the difference.

Week 2: Tackle Your Humidity Levels

Louisiana homes deal with humidity differently than most of the country. Your AC does pull some moisture out of the air, but in our climate it often can’t keep up on its own, especially during the shoulder seasons when it’s warm but not quite hot enough to run the system constantly.

The sweet spot for indoor humidity is between 40 and 50 percent. Above 60 percent, you’re creating conditions where mold, dust mites, and bacteria thrive.

This week:

• Pick up an inexpensive hygrometer (under $15 at most hardware stores) to measure your actual indoor humidity
• Check readings in your bedroom, living room, and any rooms that feel muggy or smell musty
• If you’re consistently above 55 to 60 percent, it’s worth looking into a whole-home dehumidifier

Portable dehumidifiers can help in a pinch, but they require constant emptying and only address one room at a time. A whole-home system integrated with your HVAC handles it automatically and protects the entire house.

Week 3: Clean Your Vents and Returns

Take a walk through your home and look at every supply vent and return register. You’ll probably find at least a few that are coated in dust or partially blocked by furniture.

Dusty vents don’t just look bad. They’re actively circulating that buildup back through your living space every time the system kicks on.

This week:

• Wipe down all supply vents with a damp cloth or vacuum them with a brush attachment
• Make sure every return register is fully unobstructed (sofas and rugs are common offenders)
• Check that furniture isn’t blocking supply vents in any rooms, which can create dead spots with poor circulation
• Vacuum the area around your air handler or furnace while you’re at it

While you’re checking returns, also look for any that seem to pull in noticeably less air than others. That can be an early sign of duct issues worth having someone look at.

Week 4: Address the Sources

Filters and vents can only do so much if you’re constantly reintroducing pollutants into your home. Week 4 is about reducing what gets into the air in the first place.

• Vacuuming: Use a vacuum with a HEPA filter if you have one. Older vacuums without proper filtration can actually exhaust fine particles back into the air.
• Doormats and shoes: Leaving shoes at the door cuts down significantly on the pollen, mold spores, and pesticides tracked in from outside.
• Cooking ventilation: Run your range hood when you cook. Gas stoves in particular release nitrogen dioxide and other combustion byproducts.
• Candles and air fresheners: Heavily scented candles and aerosol sprays can release VOCs that degrade air quality. If you use them, crack a window.
• Bedding: Wash sheets and pillowcases in hot water weekly. Dust mites are a major allergen trigger and they love Louisiana’s humidity.

The 30-Day Checkpoint: Schedule Your HVAC Maintenance

You’ve made it through the month. You’ve changed your filter, measured your humidity, cleaned your vents, and cut down on pollutant sources. That’s genuinely meaningful progress.

The last step is booking a professional HVAC maintenance visit. A technician will handle the things no amount of DIY can reach:

• Cleaning the evaporator coil
• Checking the condensate drain (a clogged drain pan is one of the most common sources of mold growth in Louisiana HVAC systems)
• Balancing airflow throughout your home

If any of these sound familiar, it’s time to schedule:

• It’s been more than a year since your last tune-up
• You’ve noticed musty odors coming from your vents
• Cooling feels uneven from room to room
• Allergy symptoms seem worse when you’re home

For homes where filters and maintenance still aren’t quite cutting it, our Shreveport and Bossier City HVAC company also offers whole-home air filtration and purification systems that remove particles, allergens, and even some airborne pathogens from the air your family breathes every day.

Living comfortably in Louisiana means working with the climate, not fighting it. Thirty days of small, consistent actions can make a real difference in how your home feels and how you breathe in it.

Schedule a visit with SBC Cooling + Heating and let’s take a look at what your home’s air quality actually looks like.

Call (318) 465-0853

Want to keep this checklist handy? Download the 30-Day Indoor Air Quality Challenge infographic and work through it room by room — print it, pin it to the fridge, or save it for reference all season.