Can the kids play outside? Good time for a run? Windows open or shut?
The Air Quality Index answers “how polluted is it?” It doesn’t answer the question people actually have — “is it okay to be outside right now, for me?” BreathCount reads the same official EPA data every AQI app uses, then folds in pollen, wildfire smoke, heat, and UV to give you one plain-language call — shaped by what you're actually about to do: go for a run, walk the dog, send kids to recess, work a shift outside, or manage asthma on a smoky day.
Today's haze is mostly fine-particle pollution (PM2.5). Heading out for a run or a long stretch outside? You may want to go earlier, when the air is cleaner. If you have asthma, are pregnant, older, or bringing young kids, take extra care.
Informational only — not medical advice.No sensor to buy, no map to decode, nothing to install — just open it, enter your ZIP, and get the answer. Free.
Every number comes from a public, authoritative source — not guessed or AI-invented. The plain-language call is ours; the data underneath is official.
BreathCount is an independent project. It is not affiliated with or endorsed by the EPA. See how each number is calculated and its limits →
Honestly, anyone deciding whether to head outside right now — and anyone who finds the raw AQI number confusing. It's especially handy if you're one of these:
Run a school or team? See the recess & practice tool →
BreathCount is for informational purposes only and is not medical advice. AQI readings come from official EPA monitoring stations and may represent a reporting area rather than your exact location. Conditions can change quickly. If you have a medical condition, follow your doctor's guidance. Full data sources & limitations →
The fastest way to see what BreathCount does is to check your own air.
Check your air