Delhi is winning against pollution In May 2014, the World Health Organisation declared New Delhi as the most polluted city in the world. Delhi air had PM2.5 concentrations of 153…
Air filtration scarf patented PATENT INFORMATION: Patent No: US 9,095803 Patent Title: Neck-worn air filtration device Inventors: Augustine; Scott D. (Bloomington, MN), Albrecht; Mark C. (Minneapolis, MN), Arnold;…
