A novel vacuum cleaner bag is disclosed comprising a closed receptacle having an inlet orifice, the bag being formed from a sheet containing at least 65% flashspun polyolefin fibers. The vacuum cleaner bag is suitable for conventional vacuum cleaners and provides efficient removal of particulate matter,...http://www.google.es/patents/US5090975?utm_source=gb-gplus-sharePatente US5090975 - High efficiency vacuum cleaner bags
