This is a bit scary. Aeroshots are caffeine inhalers. They contain a quick-dissolving powder.
Take a puff and you get an instant burst of caffeine. Each cartridge contains 100mg of caffeine, or about as much as a large coffee. Each holds about 6 to 8 shots. They look like shotgun shells and the target audience is college students trying to stay up late to cram for exams, or to supplement drinking binges. It is legal, but not what you might want to see around your children.