Concerned about potential adverse health effects from exposure to air fresheners, several groups petitioned U.S. EPA to require manufacturers of air fresheners to provide more information on the ingredients in the aromatic products.  The groups asked EPA to require air freshener manufacturers to conduct acute and chronic studies to evaluate the impact of their products on human health.  The groups also wanted the agency to require the manufacturers to identify the ingredients in their products.  EPA denied the petition, but sent letters to seven companies that produce air fresheners (PDF) (14pp, 9.92MB) asking them to voluntarily submit certain production and ingredient information in their air fresheners to EPA.  So far, no word on the whether the manufacturers have voluntarily complied with EPA’s request for information.  Consumer giant, Proctor and Gamble of Cincinnati, is among the manufacters receiving a letter from EPA.