Gills is an Indian company established in 2015 that produces innovative personal air purifier masks and respirators. Their first product was the Gills Max half mask, which weighs less than 120 grams and uses a patented design to reduce pollutants at their source, increasing cartridge life compared to conventional masks. The company has since developed other products for consumers, heavy industry, and healthcare. Their board includes experts in chemical safety, engineering, and marketing.