They found that 85 percent of 102 couches tested across the U.S. contained toxic or untested flame retardant chemicals -- at levels up to 11 percent the weight of the foam. The newer the couch, the more likely it was to be treated with the chemicals....[Couches] contains one of these alternative flame retardants, chlorinated Tris, now believed to be associated with health problems including cancer, hormone disruption and neurological problems.