Company develops algae-based system to filter indoor air

A company called aIgreen has developed a system using algae to absorb carbon dioxide from indoor air and convert the resulting biomass into biofuel.

By Middle East Affairs
September 7, 2026
A cylindrical black and green air filtration device labeled "vayu" stands between two potted plants against a textured gray wall.
The vayu device uses algae-based technology to filter indoor air by absorbing carbon dioxide and converting it into biofuel, positioned here alongside potted plants in an indoor setting. (BBC Arabic)
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The company aIgreen has developed a system that uses algae to absorb carbon dioxide from indoor air, aimed at improving air quality in enclosed spaces and reducing its effects on human health.

The system uses a bioreactor that keeps algae in constant motion, enabling it to absorb carbon dioxide through photosynthesis. The resulting biomass can be converted into biofuel using a process that consumes less energy than conventional methods.

Company develops algae-based system to filter indoor air | Middle East Affairs