... Travel water purifier uses unique dual ceramic membranes cartridge,filter finesse down to 0. 1 micron .squeezing air bag , ... ,climbing,survival,military,foreign travel,emergency,etc.Technical Data:1.Filter Finesse: 0. 1 micron2.Output: Approx. 500ml/min3.Capacity: ... clockwise) until it’s open. Remove ceramic cartridge from package, and then screw the ceramic cartridge onto the inner cover (part A in ...