Chemical flame-retardants are used in a variety of products to prevent the spread and occurrence of fire. While fire safety is critical, this family of chemicals, known as Polybrominated diphenyl ethers (PBDEs) are highly toxic. They are found in carpeting, foam cushions, polyester clothing and bedding, wallpaper, toys, household dust, a variety of plastic products, meat and dairy products, computers, faxes, cell phones and other electronic devices. PBDEs, especially deca-BDE, are in products commonly found in schools. Scientists have found PBDE chemicals in dust samples swiped from computers and interactive technology, which can easily be inhaled or ingested and can rapidly accumulate in children's bodies. In tiny doses these fire retardants impair attention, learning, memory and behavior in laboratory animals. This paper discusses the dangers of Deca-BDE, the health effects of PBDEs, how to avoid toxic PBDEs, and advice for parents and schools. (Contains 5 online resources.)