Monkee. .there is probably a grain of truth in the story as some airlines may reduce air change rates to minimise costs. However the press always love a good health scare and aviation is such an easy target. Why don't the airlines get their act together a bit more and start putting up their own experts to tell the other side of the story and put us in a good light. David Learmount does a pretty good job most of the time but he is not an expert on every single aspect of avaition - why can't we put some aeronautical engineers and health specialists on the box to tell it as it is?