Q. How long does instant snow last?

It all depends on how users use it and how often they clean it but snow spray may last for days or even weeks. The snow will need to be re-wet by sprinkling water on it or by adding a thin layer of "wet" snow. It usually only requires a quick fluff with the fingertips to look good as new. Snow that has been distributed too thin will require more frequent replenishment than snow that is deeper. Adjust the chilliness of the snow by adding water. Water at room temperature feels cool because it is generally colder than human skin.