Does the FilterPen remove viruses from my drinking water?
Viruses are the smallest waterborne pathogens (smaller than 0.1 micron). Viruses in water that are dangerous to humans are those that come from human sewage. They are uncommon in Europe, North America and developed nations with good sewage and water treatment practices. Common viruses include Hepatitis A and E and rota viruses. The FilterPen will remove any micro organisms or particles larger than 0.2 micron and therefore viruses will theoretically pass through the microfiltration membrane (View the graph to get an idea of the size in relation to bacteria). In practice most viruses will attach (adhere) to larger particles which are removed.
