Aim: The objective of this paper is to present the methods of disinfection of so-called “sensitive” surfaces, non-susceptible to decontamination processes, using gaseous hydrogen peroxide.

Introduction: Technically and technologically, decontamination is a very difficult process, as decontaminated surfaces should be safe for use by people and environment after the process is completed. This concerns mainly rooms, devices, documentation and specialised equipment. Nowadays, rescue teams or military groups face a very high risk of contamination. The system of crisis response in our country has the means and technologies for decontamination using so-called wet methods (the active substance exists in the form of an aqueous solution or an organic mixture) which, however, are unfit for the decontamination of documents (paper materials), specialist equipment and electronics. Irrespective of the aid provided to those injured, the effective decontamination of materials, devices and clothing should also be carried out. This process has to be effective so that secondary contamination is prevented, and should also be able to restore the affected equipment and materials to their original state. One of the practical methods for dealing with this problem involves the application of gaseous (vaporised) hydrogen peroxide and the construction of a mobile decontamination device

Methodology: Metodykę określenia działania biobójczego gazowego nadtlenku wodoru opracowano na podstawie norm: PN-EN 13697, PN-EN 14561, PN-EN 14562. Jako substancje testowe wykorzystano grzyby drożdżopodobne (Candida albicans) i pleśniowe (Aspergillus niger). Wpływ procesu likwidacji skażeń na materiały papiernicze oceniano na podstawie kontroli wizualnej materiałów, jakości znajdującego się na nich pisma lub druku. Porównywano skany dokumentów.

Conclusions: Advancements in biotechnology stimulate processes which may replace the technologies currently used as less effective and more harmful to the natural environment. Along with the increase in the number of “users” of biotechnology, genetic engineering, microbiology, molecular biology, etc., there is a greater probability that an uncontrolled release to the environment occurs or biomaterials are used for terrorist or criminal purposes. An urgent need is therefore apparent for the effective and fast eradication of bio-contaminations. The use of vaporous hydrogen peroxide appears to be a viable decontamination method for surfaces which are otherwise resistant to such processes if delivered with traditional methods. The studies revealed inter-material compatibility between stationery, varnish coatings, plastics, and electronic, optical, and optoelectronic components.

Keywords: disinfection, gaseous hydrogen peroxide

Type of article: short scientific report