NEW WHITE PLASTIC SPRAY BOTLES This is a pockets sized sprayer that you can carry with you everywhere. The idea behind it that the place you catch a cold is primarily up your nose and your buccal cavity. So the spray should get directly to this area. So when you feel you have been exposed to a cold virus (any enclosed space where people are coughing and sneezing - like a bus, tube, train etc.) you can spray some Colloidal Silver up nose and stop any infection happening.