Autonomous balloon-mounted bioreactors that float above rooftops, actively consuming urban air pollutants using living moss and algae cultures.
Each Venus flytrap-inspired biological pod opens to maximize CO₂ and particulate absorption during peak traffic hours, then descends to docking stations for maintenance and data offloading.
Looking up at a city skyline and seeing hundreds of glowing, gently floating balloons pulsing with soft green lights as they breathe in the city's smog—then checking your app and watching your personal 'clean air score' tick up in real-time as the balloon above your apartment filters the equivalent of 500 trees' worth of air.