Giardia lamblia (commonly referred to as Giardia) is a single-celled microbe or protozoa which measures about 8-12 microns in size. When ingested, Giardia can cause a gastrointestinal disease called giardiasis, often referred to as "Beaver Fever". Giardiasis is a frequent cause of diarrhea. Symptoms may also include fatigue and cramps. Waterborne giardiasis may occur as a result of disinfection problems or inadequate filtration procedures. Giardia cysts can infect humans and other animals. As in the case of Cryptosporidium, reverse osmosis or activated carbon block filters featuring at least 0.5 micron level filtration are recommended for their removal.
How to Remove Giardia from Water
We recommend the following home drinking water treatment systems to remove cryptosporidium and giardia cysts:
Systems featuring 0.5 micron carbon block filters:
Systems featuring membrane technology:
Systems featuring UV technology: