A fuming enclosure including a heating element and a moveable support or barrier. The heating element may heat a receptacle containing a volatile component. The moveable support or barrier is moveable between a first position, in which the volatile component is not heated by the heating element, and a second position, in which the volatile component is heated by the heating element. The moveable support or barrier may be moveable while maintaining the enclosure sealed. The moveable support or barrier may be automatically moveable. A fuming enclosure with a one-way seal configured to prevent fumes from escaping the enclosure and allow volatile component to flow through the seal into the enclosure while the enclosure is sealed.