Kleenex Anti-Viral tissues are the only tissue that can kill 99.9% of cold and flu viruses*. Whether it's for your home, office, or classroom you'll have plenty for everyone with 4 cube boxes of 55 white Anti-Viral facial tissues. Kleenex Anti-Viral tissue has a specially treated middle layer that wipes out cold and flu viruses in the tissue. When moisture hits the middle layer, the tissue will kill 99.9% of the viruses in the tissue. Plus, you can find a tissue box that fits your home because each tissue box is available in various colors and designs.*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 tract infection in children)