A clog-resistant filter and method for extracting fine particulate contaminants, such as smoke, from a gaseous fluid stream, such as air, uses an induced voltage electrode to efficiently capture the contaminant particles in a filter material whose pores are many times larger than the diameter of the...http://www.google.es/patents/US5647890?utm_source=gb-gplus-sharePatente US5647890 - Filter apparatus with induced voltage electrode and method
Filter apparatus with induced voltage electrode and method
