For effective filtration of certain pathogens, what micron size is recommended?

The recommended micron size for effective filtration of certain pathogens is one micron. Filtration processes target various pathogens, including bacteria and protozoa, which can be present in water.

Bacteria typically range from about 0.2 to 10 microns in size, and many protozoan cysts, such as Giardia and Cryptosporidium, are generally larger, often exceeding one micron. Filters that are capable of removing particles down to one micron can effectively capture a wide range of these pathogens, providing a significant level of protection against waterborne diseases.

Choosing a filter with a nominal rating of one micron ensures that even some of the smallest and potentially harmful pathogens are adequately filtered out, significantly reducing the risk of contamination and illness. This is critical in maintaining safe drinking water and ensuring public health.