The Toyota Mirai emits nothing but water vapour and now ads for the hydrogen fuel cell car are appearing on 'eco-billboards' – that purify the air!

Helping Californians breathe even easier, the Toyota Mirai eco-billboard campaign, in coordination with Clear Channel, will help clear the air from April 3rd through May 28th. Thirty-seven billboards in Los Angeles and San Francisco will act like giant “catalytic converters” talking 24,960 square feet of pollution, reversing the equivalent of 5,285 vehicles worth of nitrogen dioxide (NOx) emissions per month. NOx is a key ingredient in acid rain and smog.
  
The eco billboard uses a titanium dioxide coated vinyl to purify the surrounding air. When oxygen reacts with the energised titanium dioxide catalyst, NOx is converted to nitrate and removed from the air. The light-activated, smog-reducing billboards continue to purify the air as long as light, humidity, airflow and the titanium dioxide coating are present.
 
“Toyota consistently searches for new environmental technologies across all operations. When Clear Channel Outdoor Americas brought us the opportunity, we saw it as a perfect match,” said Mark Angelacos, advanced technology general manager, Toyota Motor North America, Inc. “This new campaign delivers Toyota Mirai’s ‘vehicle of change’ message on a medium that lives up to that promise.”
 
Toyota highlighted the eco-billboard campaign during the first Environmental Media Association Impact Summit in Beverly Hills, California. A Mirai hydrogen fuel cell vehicle, wrapped with the titanium dioxide coated vinyl, purified the air as guests entered the event.