Local Air Quality Tracker
Wildfire smoke, pollen and everyday pollution shift your home's air by the day. This live tracker shows current air quality across major U.S. cities — check your own by ZIP — and matches the conditions to the right filter for your home.
One moment.
How to read the number
It's the U.S. Air Quality Index (AQI). Under 50 is Good; 51–100 Moderate; 101–150 unhealthy for sensitive groups; 151–200 Unhealthy for everyone; above 200 is a health alert. During smoke or heavy pollen, the AQI is driven by fine PM2.5 particles — the exact thing a MERV 13 filter is built to capture. For more, see what an AQI of 171 means for your body and our wildfire smoke guide.
Ironside makes American-made air filters in every standard size, MERV 6 to 16, shipped flat-rate nationwide — the same shipping on 1, 2 or 3 packs. Find your size and breathe better.