The model presented to NASA engineers on April 16, 2008 included a fan for suction and the main filter which is an astronaut sock. The sock is the right type of filter material and there are plenty of them already on the Space Station. The table top is perforated and continuous for easy cleaning and the bottom can be removed. The system will filter and collect crumbs and other floating material that may become floating debris and cause problems to hardware in a Zero Gravity environment.
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