Quick Answer
Camping filters can remove some viruses, but their effectiveness varies depending on the type of filter and the specific virus. Some filters can remove 99.9% of viruses, but this may not include all types of viruses, such as norovirus.
Effectiveness of Filtering Viruses
When it comes to removing viruses, not all filters are created equal. Look for filters that have a porosity of 0.01 microns or smaller, as this is the size of most viruses. Some popular camping filters, such as the Sawyer Mini and the MSR TrailShot, have a porosity of 0.1 microns or smaller, making them effective against many types of viruses. However, it’s essential to note that even the most effective filters may not remove all viruses, particularly those that are highly contagious like norovirus.
Comparison to Other Methods
Boiling is the most reliable method for removing all types of viruses, bacteria, and other pathogens. It involves bringing the water to a rolling boil for at least 1 minute at an altitude of 0-6,500 feet. Chemical disinfection, on the other hand, is less effective against viruses, with some chemicals removing only 99% of viruses. Ultraviolet (UV) light is also effective against viruses, but its effectiveness depends on the intensity and duration of the UV light, as well as the presence of any particles or sediment in the water.
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