The main purpose of the Safe Air on Airplanes Act is to improve air quality in aircraft by phasing out the use of bleed air systems. These systems draw compressed air from the engines, which can carry oil fumes and other contaminants that may affect the health of passengers and crew. Key provisions of the Act require the Federal Aviation Administration (FAA) to update its regulations regarding bleed air systems. Within six months of the law being enacted, the FAA must prohibit new aircraft designs from using these systems.