The cloth filter has been studied and reported on by Rita Colwell and Anwar Huq from the University of Maryland Biotechnology Institute, together with other researchers from the USA and Bangladesh.
Electronic filter | Digital filter | Cherry Filter | Air filter | Photographic filter | Ohne Filter | Kalman filter | digital filter | Water filter | water filter | tweed (cloth) | ''The Field of Cloth of Gold'' | tapa cloth | Shiva amplifier chains showing spatial filter tubes (white) and Nd:glass amplifier structures (short blue tubes closest to camera). Portions of the 1982 Disney film ''Tron | Scarlet (cloth) | Sand filter | Probabilistic data association filter | Oil filter | Neutral density filter | Klaus Filter | Hield Bros. ''Lambswool Sateen'' cloth seen in the interior of Queen Elizabeth II of the United Kingdom | Fram (oil filter) | elliptic filter | CSS filter | Cloth of St Gereon | cloth menstrual pad | Clerk of the Green Cloth | Cast Iron Filter | Basire's engraving depicting the Field of the Cloth of Gold | Band-pass filter |