| Type | Biotechnology |
| Field | Air and water purification |
| Discovered | 19th century |
| Application | Industrial • urban • space travel |
| Global impact | Prominent feature in large networks of air and water purification units |
| Organism used | Algae |
| Filtering properties | Bioaccumulative, fast-growing |
| Climate regulation role | Absorbs excess carbon, produces oxygen |
| Major substances filtered | Carbon • pollutants • toxic substances |
