That's not what I claimed because I didn't claim anything at all.
Your sources are all (I think?) about the fact that the way they deal with air is good, and you may well be right that it's cleaner than in your office. That doesn't mean that it's not less clean than when smoking was allowed - it may well be that in order to get rid of the smell of smoke they needed to clean the air way more than technically necessary, and that therefore after the smoking ban it could be lowered without being "some nefarious intent".
Except the recirculation systems started well before the smoking ban...
Re:Why airplane bathrooms have ashtrays
by MattRogish on Tuesday May 22, 2012 @11:06AM
(#4008159)
I'n sorry, you're right. I confused you with the OP, please accept my apology.
Sorry - it's my fault for not giving more background on Mr. Smith - Patrick Smith has been a Delta Air Lines pilot for about 10 years, written two books on airlines, before that flying cargo, and I've met him more than once, so I'll trust him and the other pilots I've met when they tell me how their airplanes work.
Here's more of his articles on the subject: http://www.salon.com/2009/09/25/askthepilot335/ http://www.askthepilot.com/questions-and-answers/#cX-q9
and another article here: http://airlinesafety.com/articles/FSFCabinAir.htm
I'll allow that it's certainly possible that manufacturers have tweaked the circulation post-smoking, but even if so, it wasn't done with some nefarious intent or to the detriment of passengers. The air we breathe (as I'm about to get on a flight) is incredibly clean, cleaner than in my office.