Hoover type W2 HEPA vacuum cleaner filter bags for Windtunnel 2 bagged uprights.
W2 HEPA media filter bags trap 99.97 percent of dust and pollens down to 0.3 microns.
This bag is made of a synthetic cloth, not paper. Very high quality.
Hoover part: 401080W2.
2 Hoover replacement HEPA vacuum bags in a package.