Are these tiles non-porous and treated with an anti-bacterial agent? As the ones being sold by American Floor Mat are, Fit Lock Rubber Tiles.

The Fit Lock Rubber Tiles from American Floor Mats are not a non-porous tile and are not treated with an anti-microbial treatment. Like our 8mm Strong Rubber Tiles, they are made from urethane rubber and have some small pores in the flooring. To make your flooring resistant to bacterial growth and keep the flooring clean, we recommend using our Gym Cleaner / Disinfectant and our Rubber Floor Cleaner and Degreaser. These two products will help to keep your gym clean and smelling fresh after heavy workouts. Another option for keeping your gym hygienic would be to use our Rubber Floor Finish and Sealer. This will help fill in those pores to mitigate that 'Gym Smell' and make cleaning your floor easier. When using this product, you don't want to use our Rubber Floor Cleaner and Degreaser. Instead, you can use a mild soap and water solution to keep your gym smelling fresh and clean.