Homes built before 1978 likely have lead-based paint inside. A well-maintained home should not pose a serious problem for exposure to lead, but areas that are frequently used could lead to dust, chips and lead exposure. For things like windows and doors, which are opened and closed frequently, be sure to use a damp towel to clean up dust particles. Look for peeling paint, and scrape or sand it off; be sure to use a damp mop to pick up particles. Using a broom only moves the particles and can make lead particles airborne.