Live air quality

See the air around you, and around the world

Live US Air Quality Index and pollutant readings, updated from open monitoring data. Check your own neighborhood, then explore how air quality shifts across major cities.

Good 0 to 50 Moderate 51 to 100 Sensitive 101 to 150 Unhealthy 151 to 200 Very unhealthy 201 to 300 Hazardous 301 plus

Marker size scales with the local index. Hover or tap a city for its particulate breakdown. Data from the Open-Meteo air quality service.

Why indoor air matters

Outdoor air finds its way inside

People spend most of their day indoors, where particulate can concentrate. The right filtration turns a problem room into a healthy one.

Fine particulate, PM2.5

Tiny particles from traffic, smoke and dust travel deep into the lungs. HEPA filtration captures them before people breathe them in.

Air exchanges per hour

The faster a room cycles its air through a filter, the cleaner it stays. Matching the right unit to room size is the whole game.

Workshops and woodshops

Sawdust and fine debris build up fast. Dust collectors and scrubbers keep the air clear where tools throw the most particulate.