A method for producing submicron polytetrafluoroethylene powder in a free-flowing, readily dispersible form. The subject compositions comprise a plurality of distinct microbial species that all share the following characteristics: are antagonistic against a plurality of microbial pathogens; are non-pathogenic towards plants and animals; are tolerant of high temperatures; grow rapidly; and proliferate on a complex substrate. A load current generating portion in the high-voltage circuit portion includes PMOS transistors coupled in series between a high power supply voltage and the node. The clipping buckle is held back, against being pulled out, by a rearward retaining element andor a front retaining element co-operating with a counter element or counter piece of the closure housing and may be released by pressing down on the rear region.