What do you want to know?
Besides, I thought CO2 was the most damaging chemical to our precious ozone layer.
The primary damage to the ozone layer is done by breakdown products from CFCs (short for chlorofluorocarbons, "Freons"). CFCs are very inert, allowing them to slowly diffuse up into the stratosphere. In the stratosphere, they are broken down into chlorinated compounds by high-energy radiation (partly the same UV that ozone absorbs). The chlorinated species react with ozone, and the reactions are accelerated catalytically by ice surfaces in high-altitude clouds.
I suppose a strong case could be made that the banning of CFC has accelerated global warming.