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Texas spans the Gulf Coast, Hill Country, plains, and desert. Smoke can arrive fast with wind shifts and fronts. In this blog, you will learn how to see today’s live conditions, which Texas patterns matter, and how to set a simple plan for your home, school, and work.
Check the AirNow Fire and Smoke Map in the morning and again after wind or frontal changes.
Indoors, close windows, set HVAC to recirculate, and use the highest MERV your system can handle while keeping normal airflow. Add a HEPA purifier.
One-inch filters load quickly during smoke. If your cabinet allows it, a two inch or four-inch pleated filter lasts longer.
Limit outdoor exertion at AQI 101 or higher. If you must be outside in heavy smoke, use a well-fitting N95 or P100.
Replace smoke-loaded filters after conditions improve and return to your normal schedule.
Open the AirNow Fire and Smoke Map. Enter your city or ZIP code. Tap nearby monitors to see AQI, PM2.5, and health guidance. Use the time slider to check how conditions may change through the day.
Cold fronts. A front can flip wind direction and push smoke across large areas within hours.
Sea breeze. Along the Gulf Coast, morning can be clearer, then smoke or haze can move inland in the afternoon.
Dryline and gap winds. West and North Texas can see rapid changes when dryline boundaries and canyon winds shift.
Smoke and dust together in West Texas
Blowing dust can add to wildfire smoke. Keep windows closed, run the central fan to circulate through the filter, and vacuum registers and hard floors after events. If symptoms worsen, spend time in a clean air room until AQI improves.
Set the thermostat fan to “on” so air passes the filter continuously.
Keep windows and doors closed. Disable any fresh-air or ERV/HRV intake if possible.
Use a pleated MERV 11 for everyday use. Step up to MERV 13 during smoke if airflow and comfort stay normal.
Create a clean air room: run a HEPA purifier in a bedroom or main living area and keep that door closed.
Limit bathroom and kitchen exhaust during smoky hours so you don’t draw outdoor air inside.
After heavy smoke, replace the filter and check the purifier pre-filter.
If you use a window, wall, or portable AC, set it to recirculate and seal any gaps around the unit. Run a HEPA purifier in the same room. Ventilate briefly only after the map shows cleaner air for several hours. If you use an evaporative cooler, reduce use during smoke since it pulls outdoor air inside. Use alternate cooling to “recirculate” where possible.
Post the day’s AQI from AirNow. At AQI 101 or higher, keep doors closed, reduce strenuous outdoor activity, and run HVAC continuously on recirculate with the highest MERV the system can carry. Add HEPA purifiers to classrooms and gyms.
On smoky, windy days, move heavy outdoor work to the clearest hours shown on the map. Keep shop and barn doors closed where practical and run portable HEPA units in occupied work areas.
Keep windows closed and set the vehicle to recirculate. Make sure a cabin air filter is installed and in good condition. Plan fuel and rest stops for areas the map shows as cleaner and avoid long idling when AQI is high.
Do not run generators indoors or in attached garages. Exhaust contains dangerous gases and fine particles. If you expect outages, choose a HEPA purifier that can run on a small backup power source and keep one clean air room ready.
Check monthly by default. During prolonged smoke, inspect every one to two weeks and replace early if the media looks gray or matted or if airflow drops at vents. If the cabinet allows it, a two inch or four-inch pleated filter has more media and often lasts longer than a one-inch filter.
Replace smoke-loaded filters. Vacuum with a HEPA vacuum. Wipe hard surfaces with a damp cloth. Clean supply and return grilles. Confirm the HVAC drain pan is clean and draining.
Invest in MERV 13 HVAC filters during smoke if your system keeps normal airflow. Order standard or custom sizes from Filterbuy. Filters are made in the USA and ship fast with free delivery. Turn on Auto Delivery so replacements arrive on schedule through Texas smoke season.
Begin adjusting at AQI 101 or higher. Reduce outdoor exertion and keep indoor air on “recirculate.”
Check in the morning, then again after wind shifts or fronts. Use the time slider to spot likely changes.
Use On so air passes through the filter continuously. Keep windows and outside air intakes closed.
Many can, but not all. If airflow drops, rooms feel stuffy, or the blower is noisy, step back to MERV 11. Comfort and normal airflow are your signs.
Often yes. Two inch or four inch pleated filters have more media and can last longer than one inch during smoke events.
Inspect every one to two weeks. Replace early if the media looks gray or matted or if airflow at vents drops.
Yes for best results. Use a HEPA unit to make a clean air room. Close the door and run it on a setting that suits the room size.
Match the unit to the room. Choose a model that lists coverage for your square footage. Higher clean air delivery helps during smoke.
Yes during smoky hours. Exhaust fans can pull outdoor air into the home. Use them briefly only when needed.
Set to recirculate. Seal gaps around the unit. Run a HEPA purifier in the same room. Ventilate later when the map shows cleaner air for several hours.
Use sparingly. They bring outdoor air inside. Switch to an alternate cooling set to recirculate when smoke is present.
Yes if you must be outside in heavy smoke. They reduce fine particle exposure when fitted well. Not for children under fit guidelines.
Keep pets indoors during high AQI. Create a clean air room the same way you would for people. Provide water and rest.
Windows up. Set to recirculate. Make sure a cabin air filter is installed and in good condition. Plan stops in cleaner zones shown on the map.
Both raise fine particles. Treat both the same indoors. Close windows, recirculate air, and filter well. Vacuum hard floors and registers after events.
Activated carbon helps reduce odors and some gases. Use with a HEPA or high-MERV filter for particles. Replace carbon when odor returns.
Post the day’s AQI. Reduce strenuous outdoor activity at AQI 101 or higher. Keep doors closed. Run HVAC on recirculate with the highest MERV the system can carry. Add HEPA purifiers to classrooms and gyms.
Replace smoke-loaded filters. Vacuum with a HEPA vacuum. Wipe hard surfaces with a damp cloth. Clean supply and return grilles. Confirm the drain pan is clean.
Order standard or custom sizes from Filterbuy. Choose MERV 13 for smoke if your system maintains normal airflow. Turn on Auto Delivery to stay stocked through the season.
