Individually wrapped wipes prevent cross contamination, and prolong wetness. Irradiated for a shelf-life to 4 years. Large size cleans arms, hands, face and neck. Based on improved decon science originally developed by NIOSH. Helps clean off carcinogens including metal oxides, hydrocarbons, isotopes, drug residue, plastic residue as well as dirt, grime, and germs. Removes > 99% of heavy metals, soot, plastic residue and germs. Hygenall FieldWipes do not contain Trisodium Phosphates, which are da