To get your bathroom truly smelling fresh and clean you need deodorizer that isn't harmful to your health. According to a 2015 study authored by Steinemann, the most prevalent volatile organic compounds (VOCs) that have been classified as toxic or hazardous are found in fragranced air fresheners. These include acetone, ethanol, d-limonene, pinene, and acetate. According to the EPA exposure to these VOC's can result in eye, nose, and throat irritation, nausea and headaches, and even damage to liver, kidney and central nervous system.