subject: Water filtration for giardia [print this page] Water filtration for giardia are more in demand these days. Giardia is a diarrheal illness caused by a microscopic parasite, Giardia intestinalis. This parasite can survive outside the body in the environment for long periods of time. This is a common cause of waterborne disease in humans in the United States. Giardia can be found worldwide and within every region of the United States. The different water filtration and purification systems can protect the body from this parasite. The parasite is found in uncooked meat that has been infected, public water such as swimming pools or lakes and rivers. This parasite is filtered out through a low micron filter, activated charcoal, or through reverse osmosis. The filtration of this parasite is very important. If you live in an area that is prone to this parasite infection, the higher rating you need on the filtration system. The different systems will list bacterial and viral filtration abilities. The reverse osmosis system will use special processes to filter the water. The more efficient the filtration system the slower the process will be. These systems will greatly affect the water pressure for the whole house. This will be worth the changes for the ability to have your water filtration for giardia. These systems will ensure the health and safety for your family.The different systems will list bacterial and viral filtration abilities. The reverse osmosis system will use special processes to filter the water. The more efficient the filtration system the slower the process will be. These systems will greatly affect the water pressure for the whole house. This will be worth the changes for the ability to have your water filtration for giardia. These systems will ensure the health and safety for your family.