Franklin TN-based A.S. Filtration manufactures unique antimicrobial filter media that clean and treat water by removing solids and bacteria, including Legionella and coliform, in industrial, commercial and stormwater applications without chemicals or hazardous byproducts. A.S. Filtration was born from a small group of environmental engineers and scientists sharing the same ideal to provide high performance and cost-effective water quality treatment solutions to all who need it. A team of environmental engineers and scientists at saw a growing need for removing pollutants from runoff and industrial water, and they set out to find a solution. Today, A.S. Filtrations EPA-registered filtration media offers a chemical-free water treatment solution that can help organizations earn LEED certification points and comply with ASHRAE Standard 188P.