Etak is a sustained antibacterial and antiviral agent developed by Professor Futakawa of Hiroshima University. It is synthesized from quaternary ammonium salt and the immobilizing component "ethoxysilane." Because it is fixed to the surface of various objects, the antibacterial agent is not easily washed away by water, and its effect lasts for about a week even after drying. This is a set of two Etak disinfectant sprays, perfect for virus and bacteria対策. - Brand: Etak - Product Name: Disinfectant Spray - Product Name: Fresh Cologne ZERO - Purpose: Virus and bacteria対策 - Quantity: Set of 2 Thank you for viewing.