Separate high-capacity VCS-C1000Cr Catalytic Converter can be used for catalyze the hydrogen peroxide vapour from the treatment area. Catalytic Converter is an air circulating fan, which is included with HEPA-filter and potassium permanganate filter that makes chemical reaction with hydrogen peroxide vapour where the vapour decomposes into water and oxygen. VCS-C1000Cr Catalytic Converter is compatible with VCS-100Cr decontamination unit.