This 3-ply tissue has a moisture-activated middle layer that is scientifically proven to kill 99.9% of cold and flu viruses. †In the tissue within 15 minutes. Virucidal against: Rhinoviruses Type 1A and 2 (rhinoviruses are the leading cause of the common cold),Influenza A and Influenza B (causes of the flu), respiratory Syncytial Virus (RSV, the leading cause of lower respiratory infection in children). 8.2''x8.2''. White, 27/case.