Fire resistant pads are inundated with a chemical called polybrominated diphenyl ethers (PBDE) among others.
I would avoid putting that material in a place of constant human residence as much as possible. Considering alot of it is already used in chairs, tvs, monitors and other fabrics, i would recommend not making your walls a part of the toxic pool.


"Those who preach the myths of audio are ignorant of truth."