Kirby Generation Micron Upright Vacuum Cleaner Bags Fits All Kirby Generation Upright Vacuum Cleaners. This package contains 9 Genuine Kirby Generation bags. These bags were rated excellent IEC312 Filtration Standard by SLG Laboratories. The bags have a bacteria efficiency of 99.99% and feature Kirby’s exclusive Micro Particle Arrest Technology. The Micron Magic vacuum bags more than double the performance and cleaning ability of your vacuum cleaner compared to conventional vacuum cleaner bags.