Pure Bright Germicidal ULTRA Bleach is very different from the old legacy bleaches in the marketplace. The “olderstyle” chlorine bleaches have no “specific germ kill” claims in their registrations and DO NOT offer a specific “kill claim” againstbasic germs such as E. Coli; MRSA, Salmonella, Herpes, HIV, H1N1, HBV, HCV a host of others.. While adequate general sanitizers/ disinfectants these older “grandfathered” formulas cannot begin to address the increasing concerns that C. Difficile spores havepresented in healthcare facility infection control.