Dazarland,
We all drive but few people suffer fatal accidents - equally we all fly and officially there is 'No positive evidence' of ANY injuries caused by toxic air exposure.
But the actual evidence is such that countless people's testimonies report injuries after exposure.
An example of a US passenger from 2000:
http://aerotoxic.org/pdfs/RMontmayeur-testimony.pdf
As as pilot of 16 years flying the BAe 146 - it nearly killed me.
You need to do some research and find out why the airlines are now urgently putting in the known solutions.
Plus there is an article in this month's Royal Aeronautical Society (RAeS) Journal on toxic cabin air by aviation journalist David Learmount.
Please get informed of the evidence, not what you think is happening on the precautionary principle.
A cover up of the actual data is far more likely.
If anyone can publish the RAeS article here, i'm sure it would be most interesting to read.
There either is a problem or there isn't?