Heliox harnesses photosynthetic cyanobacteria to create self-healing concrete that continuously absorbs CO₂ and releases fresh oxygen—turning every structure into a living air purifier.
A construction worker watches a hairline crack in a wall literally seal itself over 48 hours after a sunny day—the dark line visibly fades as white crystals grow and fill the gap, while sensors show oxygen levels around the building rising measurably.