FLOR. These carpet tiles are resource efficient as you buy only as much as you need and can replace one tile at a time. There is no off-gassing from adhesives as there is no need for glue, padding, or tack strips. Carpet tiles are a technical nutrient as the manufacturer offers a Return & Recycle Program. Many tiles contain recycled content, and most are CRI Green Label Plus certified. 866.952.4093. www.flor.com.