Earlier quoted context omitted.
Please avoid calling the "gas duster" type cans "compressed air". It's misleading. They usually contain compressed fluorocarbons like difluoroethane. These are toxic chemicals, which are also potent greenhouse gases. Their casual use for cleaning should be discouraged.
What's a good replacement for a casual user who wants to clean their electronics? (Honest question.)
You aren't the one shifting the earth's atmosphere, it's greenhouse gases from the millions of cars,from industry and deforestation.
Everyone could start smoking cigarettes and spraying aerosol into their laptop once a day and you wouldn't make a dent in the ozone comparatively