The Safe Air on Airplanes Act directs the Federal Aviation Administration to phase out bleed air systems in commercial aircraft over time. Bleed air systems draw compressed air directly from aircraft engines to pressurize the cabin, but critics argue they can allow engine oil fumes to contaminate the air passengers and crew breathe. The bill requires the FAA to prohibit new aircraft designs from using bleed air systems and mandates that newly manufactured planes using these systems install filters to remove oil fumes starting seven years after the law takes effect. For existing aircraft designs, manufacturers must gradually phase out bleed air systems, reaching 25 percent conversion within 10 years, 50 percent within 20 years, and complete phase-out within 30 years. The FAA must issue updated regulations within six months of the bill's enactment to implement these requirements.