Eureka F&G Sanitaire F&G Kenmore 5002 and 5062 Singer SUB-1 Micro Filtration Bag, 12 Bags Treated with Ultra-Fresh for Models 52320, 12228, 63250 and 15791 EUREKA Series Uprights, SANITAIRE, KENMORE Uprights; SINGER SST Series Uprights Micro Filtration vacuum bags also capture 99% of particles 5 microns in size, including household fibers and other microscopic allergens The Ultra-Fresh finish on these bags protect against odor and stain-causing microbial growth; This helps keep your bag cleaner and fresher Ultra-Fresh treated bags are guaranteed from defects