Telling the Truth is against the law these days, only BS is allowed. The elite only want BS in the news. A dumb and dumber society is all that's allowed. Vaccines / gmo / wifi / 5g all assist with turning everybody into bird brains as well.
These chemicals (you mention in bold above) would escape out more easily, and fresh air would filter in normally... IF they would stop f'n around with the mid-upper atmosphere. That's the main problem here, but they want to keep everybody stupid. Keep old atmospheric currents locked in....no more fresh / dry air left....with them messin around with everything....creating insane looking weather patterns for trade war tactics or whatever..