The ad says "No harsh smell GREENGUARD Gold Certified for Low Chemical Emissions to UL 2818No harsh smell GREENGUARD Gold Certified for Low Chemical Emissions to UL 2818". This is not at all true. We took the mat out of the box and it smelled up our whole house. I have chemical sensitivities and this mat is making me very ill. It's going back asap. I have to keep the mat in the garage until then.
It's ok for the price but the chair casters are putting serious dents into it and I doubt it will last long. It is on a rug that is at most medium pile. I didn't realize this would happen when I bought it or I would have spent more on a different kind. My recommendation for anyone looking for a mat is clearly understand your need and buy quality to match.