Are there devices that are certified for the removal or destruction of microbes?
Viruses, bacteria and protozoa are the three types of microorganism that can be found in water. Drinking water that complies with the Guidelines for Canadian Drinking Water Quality is considered microbiologically safe. However, in outdoor recreational settings or when supplied with water of unknown microbiological quality, consumers may consider using a treatment device as one of their options (other options include boiling the water, chemically disinfecting it, or using bottled water). It is recommended that consumers seek advice from a water treatment specialist before selecting a treatment device for this purpose. Several treatment devices on the market have been certified as meeting ANSI/NSF standard 53 for parasitic cyst reduction. These devices can safely be used where drinking water is contaminated with Cryptosporidium, Giardia or other types of protozoa. These devices will not remove viruses or bacteria from water. ANSI/NSF standard 55 separates UV systems into two classes for
