Kirby Micron Magic Vacuum Cleaner Bags for G4 & G5 Models - 9 Pack High Efficiency Filtration Bags - Compatible with Kirby G4 G5 Vacuum Cleaners - Perfect for Pet Hair, Allergies & Deep Cleaning

The bags fit and work well in my old Kirby. Can't determine whether or not they are effective against pollen releasy or other irritants but the old odor that used to emanate from the bag is no longer present so I guess they are doing their job!!