"Total bunk."Yeon, a student at the Samsung Art And Design Institute, notes that a fellow Korean has developed a filter that is too fine for H2O to pass through but will allow (smaller) oxygen molecules to do so."Um, so H2O has a molecular mass of 18 and O2 has a molecular mass of 32 so no, this 'filter' would not work as described.Then there's the fact that dissolved O2 in water will have a concentration of about 6ppm, where air is about 200,000ppm. One would need to filter the equivalent of ~34,000 lungfulls of water to pull out that many O2 molecules from the water.  "