Thermobaric weapon

Device producing a high-temperature explosion

A thermobaric weapon, also called an aerosol bomb, or a vacuum bomb, is a type of explosive munition that works by dispersing an aerosol cloud of gas, liquid or powdered explosive. This allows the chemical combustion to proceed using atmospheric oxygen, so that the weapon does not need to include an oxidizer. The fuel is usually a single compound, rather than a mixture of multiple substances.

From Wikipedia, under CC BY-SA. More on occurri.