The NanoFiber mask filter is soft and lightweight and also boasts excellent breathe-ability. It provides double-sided filtration, protecting both you and those around you from harmful viruses and bacteria. The rough side will cling to the material on the inside of your mask, helping to keep it in place, while the smooth side wicks moisture and is comfortable on your face. Note that if you do not have a filter pocket on your mask, the ‘cling’ will work better on flat masks than on the accordion-style cloth masks. Filter dimensions 17.5 cm x 11 cm (6.9 x 4.3in).
Made in the Czech Republic, the NANO capital of Europe.
Super savers tip: because these filters are so lightweight, buy up to 10 packs at once and save.