Originally Posted by
rickair7777
There does exists the potential for toxic fluids to get past seals and into the bleed air. Also demonstrated that some fluids can be altered by the heat of compression at the bleed stage to produce REALLY toxic chemicals (ie nerve gas).
In future designs cabin air will probably be produced by an electric pressurization/HVAC unit like the 787. Or at least will have some more robust filters.
my point was this is not a Boeing only issue like the media is making out to be. In fact, Boeing is the only company working to fix it. The 787.