sentences:  Benzethonium chloride exhibits a broad spectrum of microbiocidal activity against bacteria, fungi, mold and viruses.Independent testing shows that benzethonium chloride is highly effective against such pathogens as methicillin-resistant "Staphylococcus aureus", "Salmonella", "Escherichia coli", "Clostridium difficile", hepatitis B virus, hepatitis C virus, herpes simplex virus (HSV), human immunodeficiency virus (HIV), respiratory syncytial virus (RSV), and norovirus.The US Food and Drug Administration (FDA) specifies that the safe and effective concentrations for benzethonium chloride are 0.1-0.2% in first aid products.