Abstract: Devices and methods for sterilizing and/or disinfecting workpieces, such as medical and dental instruments. The device can include a chamber that receives the workpieces and can be sealed. The chamber is filled with chlorine dioxide gas to a threshold concentration and for a time sufficient to sterilize and/or disinfect the workpieces.

Abstract: A system for disinfecting and purifying aqueous solutions and water for drinking purposes comprising an outer pouch, a disinfectant generating device, and an inorganic coagulant. The disinfectant generating device is provided with a membrane shell defining at least two compartments which house a first reactant, a second reactant, and an inorganic coagulant. The disinfectant generating device is capable of producing a disinfectant when exposed to water or moisture and the disinfectant exits the compartment through the membrane shell. The inorganic coagulant aid the formation of flocs of the suspended dispersed particles in the aqueous solution.