Читать книгу Cell Biology - Stephen R. Bolsover - Страница 18

Because even the smallest cells are larger than 1 μm, harmful bacteria and other organisms can be removed from drinking water by passing it through a filter with holes 200 nm in diameter. These filters can vary in size from huge, such as those used in various commercial processes, to small enough to be easily transportable by backpackers. Filtering drinking water greatly reduces the chances of bringing back an unwanted souvenir from your camping trip!