Toxic chemicals are sprayed into thousands of Southern California homes each year by commercial pest control companies to kill fleas. These toxins can also cause poisoning of dogs and even illness in children and adults.
The pest control companies generally advise the homeowner to vacate the house for four hours after the spraying and thoroughly ventilate it after re-entering.
Dursban is one of the most widely used chemicals for flea control. On the label of the product, the chemical company that manufactures the product states: "Do not permit humans or pets to contact treated surfaces until the spray has dried. Old pet bedding should be replaced with clean, fresh bedding after treatment."
The homeowner never sees this information, and four hours is not always a sufficient amount of time for the surfaces sprayed to have dried completely or safely.