I am very sensitive to the rubber odor. Do these have a strong odor? Also, will the odor dissipate and how long does this take? They will be placed in a basement with that is heated and cooled, but there are only a door and a small window for ventilation from outside.

Our 3/4" Premium Extreme Mats do have a rubber smell to them. To help mitigate this smell, we recommend mopping the flooring with a mild soap and water solution and letting the flooring air dry. You may need to repeat this a few times to dissipate the smell to your liking. We also recommend providing as much ventilation as possible to help mitigate the smell.