There are many different types of water filtration, however not all of them are the best. For example, you could use reverse osmosis systems and they work really well because they purify water. However, they waste water while they are at it. Another type of water filter is the ion exchange system. These use a charcoal filter to remove salts and minerals. You can check out several ion exchange systems in your local store. You might want to check out Brita water filters to see if they are what you are looking for. You might want to check out shower filters, too, because you will find they are affordable and very helpful. Another type of water filter is distillation. This system works by basically boiling the water. A steam is created and then when it condenses there is pure water left over. This is a great method of purifying water, however it does remove good minerals so you need to replace these in your diet. Any type of water filtration is better than no filtration at all. However, the best water filter system for you will depend on what you need it for, your budget, and what you are trying to remove from the water. Keep this information in mind when you are doing research to help you find the right type of water filter for you.