In order to determine the effects a product may have upon either ourselves or our environment, we must become experts at reading product labels. Ifa product contains a chemical that is hazardous, the label must, by law, specify what that hazard is. Look for the following words on your cleaning and other household products: Toxic/Highly Toxic: Poisonous if you drink it, breathe the fumes, or if it is absorbed through your skin. Extremely Flammable/Flammable/Combustible: Can catch fire if exposed to a flame or electric spark. Corrosive: Will corrode metal, can eat away your skin or cause inflammation of mucous membranes. Strong Sensitizer: May provoke an allergic reaction. DANGER: Could kill an adult if only a tiny pinch is ingested. WARNING: Could kill an adult if about a teaspoon is ingested. CAUTION: Could kill an adult if an amount from two tablespoons to two cups is ingested.