Most of the diseases are water borne so it is very important to drink filtered water. There are many types of water filter which work on different technologies:
- Charcoal water filters
- Water distillers
- Ceramic water filters
- Reverse osmosis
- Atmospheric water generator
- Ultraviolet water filters
- Magnetic water filters
- Infra Red water filters
- Catalytic water filters
- Ionized water filters
- Home made water filters
For domestic purpose the most popular water filters are the Charcoal water filters. They are simple to install, low on cost yet very effective. Charcoal water filters filter out the most deadly of contaminants like Cryptosporidium and Guardia. An average charcoal filter will last a family 6-9 months. Some charcoal filters are enhanced by the use of activated silver, which provides extra antibacterial protection. Other high-end water filters like Ultraviolet water filters are also very effective but they are basically used in industrial purposes and their maintenance is a very costly affair.