Specifications uv+uf+aaa water purifier (antibacterial filter, alkaline filter, antioxidant filter) uses a sediment filter, activated carbon filter, ultra-filtration membrane, antibacterial/alkaline/antioxidant filter and ultra-violet lamp that removes minute sediment particles, chlorine, bad taste, odor, colloidal particles, eliminate bacteria, virus, change the properties of filtered water into mineral rich health promoting water which is alkaline and has antioxidant properties and kills 99% of bacteria and viruses that may be contaminating your water. Features: 5 stage uv+uf+aaa water purifier (electric) stage 1 - sediment filter remove the particles, impurities and dust in the water. This cartridge usually works as the previous cartridge to protect the behind filtration for water treatment system stage 2 - activated carbon filter remove chlorine, odor, smell and suspending particles stage 3 - ultra-filtration membrane remove essentially all colloidal particles (0.01 to 1.0 microns) from water and some of the largest dissolved contaminants. All colloidal particles (including most pathogenic organisms) are removed, but most of the dissolved solids may pass through the membrane without causing problems downstream or in the finished water. Uf will remove most turbidity from water. Stage 4 - antibacterial, alkaline, antioxidant filter eliminate bacteria, virus and stop its growth in water. The alkaline antioxidant filter cartridge is an inline cartridge to change the properties of filtered water into mineral rich health promoting water which is alkaline and has antioxidant properties. The alkaline antioxidant filter uses a new generation of special natural ceramics that changes the properties of the water as it flows through it. The alkaline antioxidant filter cartridge is used to put into the water beneficial ionized minerals. Increases the ph of water typically to between 8.5 and 9.5. Changes the oxidation reduction potential of the water (orp) and remove free radical oxygen. Reduces the size of the clusters of water molecules so that the water is more easily absorbed in the body. Puts into the water beneficial alkaline minerals such as potassium, magnesium and calcium stage 5 - ultra-violet lamp kills 99% of bacteria and viruses that may be contaminating your water. No harmful chemicals are used to achieve this clear, clean water. Reduces exposure to viruses, bacteria, and intestinal parasites that often lead to health problems such as diarrhea, cramping, and more. Simply passing drinking water through a uv water filtration system can kill the sources of these illnesses, keeping your family safe from disease. Uv rays are electromagnetic rays found in the natural spectrum of sunlight. When bacteria and viruses pass through uv lights, their internal structure is changed and they can no longer reproduce. This basically kills the organism, eliminates the risk of disease. Installs easily suitable for home, apartment, schools and anywhere there is a faucet connection. Terms & condition: goods once sold shall not be accepted back.