The SMOG FREE RING is made from smog collected by the SMOG FREE TOWER. By sharing a SMOG FREE RING you donate a 1000 m3 of clean air.
SMOG FREE RING is used as engagement and wedding ring by couples all over the world, and part of the permanent art collection of the Utah Museum of Fine Arts USA, Stedelijk Museum Amsterdam, National Museum Zurich and The Biosphere Environment Museum in Montreal.
SMOG FREE RING is used as engagement and wedding ring by couples all over the world, and part of the permanent art collection of the Utah Museum of Fine Arts USA, Stedelijk Museum Amsterdam, National Museum Zurich and The Biosphere Environment Museum in Montreal.