It is in the interest of the public health and national security that the Public Health Service find a licensee for the commercial development and rapid dissemination of the apparatus and method of this invention.

The apparatus enables the decontamination of articles contaminated with bioweapons, more particularly sporolated bioweapons of which anthrax (Bacillus anthracis) is of notable concern. The system includes enclosing the article to be decontaminated in a humidified environment thus enhancing the susceptibility of spores to decontamination gases such as chlorine dioxide. Vacuum sealing the chamber and exposing the contaminated article to decontamination gases kills 100% of the spores.