India's first mobile 'liquid tree' developed to clean air in crowded urban areas

Researchers at CSIR-CIMFR have developed India's first mobile Smart Algal Liquid Tree (SALT), a compact air-purification system that uses microalgae to absorb carbon dioxide and release oxygen. "The primary purpose of this innovation is to combat poor air quality in densely populated and space-constrained urban areas where there is no room to plant large trees," one of the researchers said.