Catalysts don't get consumed by the reactions they facilitate, so the weight of the catalyst compared to the ozone doesn't say much about the effect. For examp

Catalysts don't get consumed by the reactions they facilitate, so the weight of the catalyst compared to the ozone doesn't say much about the effect. For example, consider that a car exhaust catalyst contains ~5 grams of platinum, and AFAIK, that doesn't really "wear out".