The American brand Vapur, whose main specialization is the development and production of various reusable foldable flasks (containers), announced the start of the sale, in the first half of April 2013, of a new original product — a lightweight universal foldable flask with a small built-in filter.
The specially designed lid of the Vapur MicroFilter collapsible flask, up to 1 liter, holds a small SureAqua purifying filter. Modern membrane filter retains up to 99.99% of dirt, pathogens and bacteria. The service life of the removable filter is designed for 500 liters of water. The $80 Vapur MicroFilter kit includes an additional removable filter and reservoir.