Air-TREE: could it catch on?

by

ecofriend picks up on a South Korean designer’s idea for an urban air filtration system based on HEPA filters.

1. Trees act as natural filters, removing pollutants from the air
2. But in cities there are often not enough of them
3. Therefore build some
4. And the bases also double as tree seats

There are more pictures here.

ESI references:

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