Keep Computer Duster Very Far From Boiling Water

Despite the name “canned air,” computer duster isn’t oxygen at all. It’s actually 1,1-Difluoroethane kept under pressure in its liquid form and released as a freezing cold gas. It can cause moderate frostbite. It can get you high if you huff it (but don’t do that—it’s a truly awful idea.) And it makes boiling water…