I am a retired chemist with a lifetime experience of research and a fair understanding of science outside my field. Because of that I find the ozone hole a matter of only mild interest, a non-problem.
Ozone is formed in the upper atmosphere by the actinic rays in sunlight. That has been going on since the Cambrian and possibly even the Precambrian era. In basic point of fact, ozone is destroyed naturally as fast as it is formed. The ozone in the atmosphere is in what chemists call a steady state equilibrium.The ozone hole? Not to worry. There's stagnant air over the poles, and in the Arctic winter, that air is out of sight of the sun. There is no production of ozone there in winter for want of irradiation by actinic rays. The ongoing destruction of ozone keeps going on - and naturally, as has happened for millions of years, ozone holes develop over the poles in their respective winters. Alarmists view the ozone destruction like the dipping of water out of a bucket. For the wintertime air over the poles this is a fairly good model. For our part of the world it is more like dipping water out of a well.
The ozone alarm bandwagon has a host of passengers. There are researchers diligently studying the toenails, the nasal hairs and other accessible parts of the elephant, and they contribute to and keep up the alarm. And there are those who believe to the contrary, who have scathing denouncements of the poor science of this scare. If you want to see the other side of the argument, I would recommend you read "The Hole in the Ozone Scare" by Rogelio A. Maduro and Ralf Schauerhammer, published by 21st Century Science Associates, Washington, D.C. (1992).