All purpose disinfectants; All purpose disinfectants for mold and mildew using chitosan, ultra-low molecular weight chitosan, chitosan oligosaccharide, citric acid, for agricultural, commercial and domestic use; Antibacterial cleaners; Antibacterial spray; Antimicrobial preparations for inhibiting microbiological decomposition in food, beverages, animal feed and pharmaceuticals; Antimicrobial preparations for inhibiting mold and mildew using chitosan, ultra-low molecular weight chitosan, chitosan oligosaccharide, citric acid, for agricultural, commercial and domestic use; Antimicrobial preparations for preventing mold and mildew using chitosan, ultra-low molecular weight chitosan, chitosan oligosaccharide, citric acid, for agricultural, commercial and domestic use; Biocides; Biological fungicides; Fungicide for turf and ornamental use; Fungicides for agricultural use; Fungicides for domestic use; Microbiocides for industrial and institutional manufacturing processes and wastewater applications; Mold inhibiting chemicals for treating mold growth in and around buildings; Sanitizing preparations for hospital use; Sanitizing preparations for household use; Sanitizing preparations for use in institutional and industrial areas