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2. Do You Really Need a Water Filter? - AOL

   www.aol.com/really-water-filter-144247487.html

   What kind of water filters are out there? Water filters come in all makes and models. Pitcher versions (like a Brita) filter water by running it through a block of charcoal, a piece of mesh, or ...

3. Water filter - Wikipedia

   en.wikipedia.org/wiki/Water_filter

   A water filter removes impurities by lowering contamination of water using a fine physical barrier, a chemical process, or a biological process. Filters cleanse water to different extents, for purposes such as: providing agricultural irrigation, accessible drinking water, public and private aquariums, and the safe use of ponds and swimming pools .

4. Water purification - Wikipedia

   en.wikipedia.org/wiki/Water_purification

   Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids, and gases from water. The goal is to produce water that is fit for specific purposes. Most water is purified and disinfected for human consumption ( drinking water ), but water purification may also be carried out for a variety of ...

5. Reverse osmosis - Wikipedia

   en.wikipedia.org/wiki/Reverse_osmosis

   Reverse osmosis. Reverse osmosis ( RO) is a water purification process that uses a semi-permeable membrane to separate water molecules from other substances. RO applies pressure to overcome osmotic pressure that favors even distributions. RO can remove dissolved or suspended chemical species as well as biological substances (principally ...

6. History of water filters - Wikipedia

   en.wikipedia.org/wiki/History_of_water_filters

   The history of water filters can be traced to the earliest civilisations with written records. Water filters have been used throughout history to improve the safety and aesthetics of water intended to be used for drinking or bathing. In modern times, they are also widely used in industry and commerce. The history of water filtration is closely ...

7. The best Walmart deals under $100 to shop right now ... - AOL

   www.aol.com/lifestyle/best-walmart-deals-under...

   Walmart. Travelhouse Hardside Luggage Set, 3-Pieces. $86 $350 Save $264. If your current bags have seen better travel days, it's time to level up with a truly incredible deal. The bestselling ...