Many chemicals are used as flame retardants. Of greatest concern are those with halogens attached to the carbon backbone, particularly the halogens chlorine and bromine. The most commonly used BFRs are polybrominated diphenyl ethers, or PBDEs. Although some problematic flame retardants are slated for phase-out, others remain on the market. It is important to communicate to the marketplace your desire for safer flame-retardant products.