HQRP 2-Pack Filter for Eureka Whirlwind 3272AV 3282AVZ, Clean Living 3281AZ 3281BZ, 3270 3280 Series Upright Vacuum Cleaner Coaster HQRP&reg; 2-pack Filters plus HQRP&reg; Coaster; This glass fiber paper filter is H13 filtration class and retains 99.99% of particles down to 0.3 micron. For optimum performance, change filter at least every 6 months. Compatible with Original filter; 2 weeks DOA replacement warranty!