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… and FYI as for “Compressed air” cans - None of these canned products use actual air, as air is mostly nitrogen. Nitrogen is hard to compress, so would only briefly spray before running out. They nearly all contain Difluoroethane. A non-ozone depleting refrigerant. Its a hydrocarbon similar to butane. And yes it is very very flammable. That being said, as a previous poster mentioned - there is nothing wrong with using compressed air cans once in a while, especially if you need to get into deep crevices where no other tool will go. Its just about using common sense.
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