3 Minute Micro-Kill Q3 Quaternary Disinfectant, Bottle, 64 oz. 4/CS EVSCHEM1103 minute contact time for many bacteria and viruses For hard, nonporous surfaces Fragrance free EVCHEM005 is an empty spray bottle for use with the Medline four chamber dispenser for spray refilling Micro Kill Q3 concentrated disinfectant has received EPA approval for testing against SARS CoV 2 (the cause of COVID 19). The claim was officially approved by the EPA on July 28, 2020. We are still in the process of adding the claim to our labeling;