Mat transpires from extreme! Unusable!

I bought four mats to place them under a larger exercise equipment.
I rate the mats with at least one star, because they have the dimensions and thickness described. They seem to put a damper on the good day.
But now comes the vast, negative part: The mats fry from extreme! After unpacking they spread directly a penetrating chemical smell. I have first unpacked simply placed in the corner, but after two hours stay in the same room I had scary severe headache and I felt sick. I almost passed me, so strong is the effect of the smell! I have now banished to the basement because of Unaushaltbarkeit odor.

Conclusion: In this default configuration, the mats are not usable! One can no longer than one / two hours stay in the same room.