I LOVE this chair.  I have extremely severe Toxic Injury and do not react to this chair at all, nor smell anything on it at all.  I am the girl for whom a "bad" (non-organic) mattress stunk up the whole entire house.  This chair is the opposite and wonderful!!!!!!!!Highly recommend for MCS or Toxic INjury, at at reasonable price, although I never did find out if there is PFOS in it; Do you own research, but I found this chair to have no smell at all, therefore a good chance it is at least Low-chemical or low offgassing!!!!!!