I considered six important criteria when using each reusable water bottle: filtering and filter capacity, materials, taste, ease of use and cleanup. These are all factors you should consider when looking for a water purifier bottle. You’ll want to purchase one that suits the activity you plan to use it for. For instance, if I was looking for a filtered bottle to take backpacking, I wouldn’t choose the Brita. I also wouldn’t invest in the Grayl Geopress if I only needed a bottle for tap water.
Filtering
Look for a filtering mechanism that filters out harmful contaminants, bacteria and viruses and other unpleasantries out of the presumably non-potable water. Does the filter leave any particles in the water after filtering? Also, consider how much replacement filters cost and how easy it is to replace them.
Materials
Most filtered water bottles are made of plastic or stainless steel. If the bottle you are considering is
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