Hana-Water-cleaning-billboard-banner.jpgHANA Water Cleaning Billboard 1

This Lush Floating Billboard Cleans the Water Below

Advertising that also serves the greater good? Now that’s something different. This floating billboard is covered in Vetiver; a perennial, non-invasive grass which has found popular used treating wastewater; even when it’s high in nitrates, phosphates and heavy metals. In ...