![](https://d2bio.co.uk/wp-content/uploads/2017/09/yale-nursing.jpg)
The Yale University School of Nursing, is the oldest university school of nursing in the world. To celebrate its 90th anniversary it dedicated its relocation to a newly renovated cast concrete building on the West Campus. Wiss, Janney, Elstner Associates specified D/2 Biological Solution for the cleaning of the cast concrete facade.