True, but they have made wonderful advances in the field of ventalation. Maybe the anti-smokers should petition for attic fans instead of forcing their habits onto the smokers, in a place they would never go anyway.

With that logic, lots of people have died of lung cancer without smoking.

If it was the cigarettes, anybody who didn't smoke them would still be alive.

Further, anyone that smoked them for 80 years, would die from the tobacco.

Most likely has to do with an April Fools day prank.

What I noticed was the lack of any mention of the cost of desiccant, or how to reuse it. A sealed AC unit may have 13 pounds of hydrocarbons, but, unless something goes horribly wrong, all these chemicals are tightly contained. An AC system can also reuse these CFCs indefinitely, while the desiccants have a finite water absorption amount.