 And then from that salt solution, we then do need battery power to pass it through another membrane to get rid of that salt, at which point that filtered water then returns to an in-suit drinking bag. Currently, astronauts do have an in-suit drinking bag. It contains less than a liter of water to drink for spacewalks that can last up to 12 hours. And it has been a source of complaint for astronauts over and over and over again. So we've redesigned it so it can hold more water, given the, I suppose, bladder conditions of each astronaut.