How bad is the smell with these tiles? Is the smell a toxic release of VOC in the air? I am wanting to install in a basement gym with no windows and poor ventilation. Will this cause an odor throughout my basement and house?

Our Eco-Loc Rubber Tiles will have a slight rubber smell when you first receive them. The rubber smell is not toxic and can be mitigated pretty easily. We recommend mopping the floor with a mild soap and water solution with a synthetic mophead and letting the flooring air dry. You will want to make sure that the room where the flooring will be installed is well ventilated. If you have no windows, fans are a great alternative. If you are very sensitive to smells, you may have to repeat this process a few times.