Bleach-Rite® contains pre-mixed, ready-to-use bleach at a 1:10 concentration (.525% bleach) at expiration, which is the concentration recommended by the NCCLS, OSHA, CDC for disinfection against bacteria, viruses, spores. BLEACH-RITE ® eliminates the need to mix concentrated bleach with water daily. EPA approved to kill Coronavirus in 1 minute!