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document.write("<h5>Quite disingenous</h5>");
document.write("Mmmm...methinks i smell a rat.  The air isn't actually \"clean\", it's only acceptable IF the filters are working properly.  Moreover, airlines are trying to save all the pennies they can - ergo, less air is taken in from outside.  Finally, how does the outside air get into the cabin?  Through the engines, of course, which have on numerous occasions been shown to poison crew and passengers.... Sickboy");
document.write("<h5>Sickboy - not the shapest pencil...</h5>");
document.write("Sickboy - rather refrain from commenting on something you obvioulsy don't know anything about. Just how will taking on less air save money, and no, outside air does NOT get into the cabin via the engines, just as your car's aircon system is NOT linked to the exhaust.... Bob");
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