Definition
Toxic and hazardous materials (B3) are chemicals that have flammability, that can cause loss due to oxidation (corrotion), can explode and are toxic in nature. As it is harmful to humans and the environment, how to dispose them should not be the same as the other domestic waste. B3 can be solid, liquid or gas. Room sprays, insect repellent (spray) mixed with aerosol containing chlorofluorocarbon (CFC), nitrogen oxides (N2O) atau hydro carbon (HC).