`` It 's been so constant and just continues to worsen Results of scientist 's research could expand recognition of ` ` bleed . '' Bleed air is air that passes through the engines of a plane , then into cabin . Boeing and FAA say air quality on airplanes is as good as in office or home . Flight attendant Terry Smith believes she is a victim of pollution in cabin air .
Results of scientist 's research could expand recognition of ` ` bleed . '' Bleed air is air that passes through the engines of a plane , then into cabin . Boeing and FAA say air quality on airplanes is as good as in office or home . Flight attendant Terry Smith believes she is a victim of pollution in cabin air .