It has a built-in Anti-Microbial technology during the manufacturing process. This chairmat continuously fight the growth of microbes. It effectively fights the growth of microbes, such as E-coli, Salmonella or Mould. The active ingredient will not wash off for the life of the product. It contains 25% recycled material and 100% recyclable. 12 month warranty. Available in 90x120cm, and 120x150cm.