One of America's largest retail banks has given Bio-Dry the Green light for their facilities to use Bio-Dry Contractors.  "The Retail Standards Process and Innovation Team is pleased to introduce an alternative solution to cleaning drive thru lanes at our stores....  The product is called "Bio-Dry"....  The product was found to eliminate the use of water, cleaning as good if not better than pressure washing and is a much safer product for the environment."  

Bio-Dry is patented due to its uniqueness.  Putting other products on concrete can and does hurt the surface and are even in violation of the EPA standards.