Pretty sure that during the last five years there was a document or video where someone claimed that the fire retardant given off by a mattress <10years old each night requires 1/8 of a tsp of Salt to clear past the kidneys..
Never mind whats in your treated carpet, couch and reclining chair. Also many plastics off gas bromine in one flavor or another..
Keep in mind it is Bromine why fire fighters can NOT enter a building without respirators.
Anyone who wants to do more research you can start by trying to buy a mattress without fire retardant..
Next try and buy baby clothes without that or antimony..