Smog-Reducing Granules Address Pollution Using Roofing Shingles
ST. PAUL‚ Minn. — The 3M Industrial Mineral Products Division recently launched 3M Smog-reducing Granules to help remove smog pollution (nitrogen oxides or NOx) using roofing shingles.
Integrated throughout a shingle’s surface, 3M’s roofing granules are designed with a specialized photocatalytic coating applied to the base mineral.