The first self-cleaning, microbiological water filter that also filters viruses.
The patent-pending MSR Guardian water purification filter (pump) is designed to provide the safest and easiest way to purify water anywhere in the world. Developed in conjunction with the US military, the Guardian is based on the latest technology. It took six years to develop and it was worth it. It can be used in different types of water. The mechanical hollow fiber filter system with a pore size of just 0.02 micrometers reliably removes everything from dirt particles to bacteria and even viruses from the water, providing you with safe drinking water, even in the most remote corners of the world. The portable water filter is therefore particularly valuable for travelers abroad, globetrotters, backpackers, rescue services and on expeditions. The MSR Guardian purifies 2.5 liters per minute and at least 10,000 liters in total. And all without chemicals, lights or batteries. The filter can be screwed directly onto numerous commercially available water bags or bottles with a large opening. The entire filter system is self-cleaning! With every pumping movement, 10 percent of the water drawn in is used to remove the impurities from the filter and rinse them out through the dirty water outlet hose. Backwashing or even mechanical filter cleaning is no longer necessary - the water flow is ensured at all times. Maintenance problems and user errors are a thing of the past. Not only is the Guardian's housing extremely hard-wearing, the filter itself can withstand temperatures of up to 70° Celsius and well below freezing. It can also withstand drops from a height of 1.80 meters and forces of up to 136 kilograms. It can be packed very compactly and small. A really robust, handy drinking water supplier with the best water quality.