Denver vs Colorado Springs Air Quality Comparison
Which city has cleaner air right now, from the latest EPA AirNow AQI
As of September 24, 2026, Denver, CO has cleaner air than Colorado Springs, CO — AQI 24 (Good) vs 30 (Good), a gap of 6 AQI points in the latest EPA AirNow observations. Lower AQI means cleaner air. Denver's reading is driven by O3 and Colorado Springs's by O3.
Denver, CO
Good
Colorado Springs, CO
Good
Summary
Denver has 6 points better air quality
Denver has an AQI of 24 compared to 30
Reduce Indoor Ozone in Colorado Springs
Today's main pollutant in Colorado Springs is ground-level ozone (AQI 30). Important: standard HEPA filters do NOT remove ozone — only a purifier with a substantial activated-carbon bed adsorbs it. The biggest wins are cutting indoor sources (gas appliances, certain "ionizer" purifiers) and ventilating when outdoor ozone is low (early morning). A high-carbon unit helps with the gases and VOCs that linger indoors.
Compare activated-carbon purifiers (for gases & ozone):
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