The most common in-home water treatment product in developing countries is a gravity-fed canister. It is estimated that there are more than 65 million of these canisters in use worldwide. Typically, they are fitted with one or more ceramic candle filters to remove particulate matter and clarify water. Some remove parasitic cysts, and a few even remove some bacteria. None remove viruses. The HaloPure Purifier Insert is designed to fit between the upper and lower chambers of gravity-fed canisters to reliably, safely and effectively kill the bacteria and viruses left behind by conventional filters. Unlike standard, gravity-fed, canister-based systems, HaloPure water purification technology:

• Has been tested and certified by BioVir Laboratories, a leading laboratory in the United States, and has been proven to kill disease-causing bacteria and viruses.
• Quickly delivers safe and purified drinking water.
• Has no offensive chemical taste or odor.