The water produced by reverse osmosis is just as good or even better than some bottled water. Not only does bottled water sit in plastic bottles for months and exposed to high temperatures when shipped from it's bottling plant, if you look at the label of a water bottled it will likely say it's purified by reverse osmosis. Not only is the same technology being used to produce bottled water, it's much more expensive and often does not have the same fresh taste of water that has been recently filtered.