Hygietol Instrument Enzymatic 30 mlNon- corrosive disinfectant for dental and medical instruments.Eliminates HIV,Hepatitis, and other harmful microorganisms.DIRECTIONS:Add 20ml hygietol to 1 litre of clean water.Minimum soaking time 5 minutes (virucidal ,bactericidal, sporicidal.) 15minuste (fungicidal).Do not exceed recommended soaking times.After disinfection, rinse instruments thoroughly with RO or distilled water.Use 4% solution for heavy soiled items.Change the solution weekly or daily dependenton level of use.If physical dirt is showing in the solution change sooner.Do not use on alloyed materials.malleable iron or alluminium casting parts.