From the air your vacuum pulls through the bag, Filtrete Micro allergen vacuum bags capture 94% of particles larger than 1 micron size, including dust mite debris, grass, and ragweed pollen. They also capture 57% of particles between 0.3 and 1 micron in size, including household fibers and other microscopic allergens. Fits models: Eureka 4800 series uprights. 3 bags per package. No. 67704A-6: Type: RR, Filtration Type: Micro Allergen, For Use With: Eureka 4800 series uprights, Pkg Qty: 3, Package Type: Hang Tag Thanks for shopping Hipp Hardware Plus's Online Store for all your DIY and Home Improvement needs. Remember Hipps Help!