Are the off-gassing fumes toxic? Can these be used in a play area that also serves as a guest bedroom?

Our Pre-Cut Regrind Rolls and all of our rubber rolls are safe. Our rubber flooring is constantly tested to ensure this fact. So the fumes you smell are not toxic. Our rubber flooring can and has been used as flooring throughout the home, so, yes, our Pre-Cut Regrind Rolls are great as a play area flooring in a guest room. Rubber flooring is easy to clean and maintain and is mold and mildew-resistant. Also, rubber flooring is very slip-resistant, especially when wet, making for a safe play area for kids of all ages.