Description This NuTone Type CV-391 vacuum bag Fits NuTone CV350, CV352, CV353, CV450, CV653, and CV750 central vacs There are 3 Micro allergen bags per package and for optimum performance, change your bag every 1-2 months! Filtrete Micro Allergen vacuum bags capture 94% of particles larger than 1 micron n size, including dust mite debris, grass and ragweed pollen. They also capture 57% of particles between 0.3 microns and 1 micron in size, including household fibers and other microscopic allergens.
