Just Spray and Walk Away™. Benefect® Disinfectant is the first and only Botanical Hospital Disinfectant and Fungicide registered with the E.P.A. for control against gram-negative and gram-positive bacteria (MRSA, Salmonella enterica, Staphylococcus aureus and Pseudomonas aeruginosa), fungi (Trichophyton mentagrophytes), virus (HIV1, the AIDS virus) and tuberculosis (Mycobacterium tuberculosis).