🌬️✅👍

#good air quality #approved air #clean air #low pollution #breathable air #air check #safe air

⛏️🐦✅

#canary in coal mine #air quality mining #gas detection #mine ventilation #historical safety #safe air #methane detection

🟢👍<->🔴😷

#aqi scale #good air quality #bad air quality #air pollution levels #health advisory #safe air #unhealthy air