No! This is a common misconception based on the belief that they contain chlorofluorocarbons (CFC’s) which are harmful to Earth’s ozone layer. The truth is that the aerosol industry lead the way to formulate away from CFC’s years before the EPA banned their use in 1978. Since that time, the industry has continued to develop new chemistries to help improve air quality and to provide safer and more effective solutions for consumers. In addition, a majority of aerosol containers are made of steel, the most recycled material in the world.