Allergen filtration bag delivers a high level of filtration for common allergens to help prevent them from being dispersed back into the air. Easy-to-install design goes on and removes quickly to simply replace filled bags. Disposable material allows you to conveniently discard filled bags for time-saving replacement. Allergen bag is designed for Hoover HushTone Vacuum Cleaners (sold separately).Allergen filtration bag delivers a high level of filtration for common allergens to help prevent them from being dispersed back into the air. Easy-to-install design goes on and removes quickly to simply replace filled bags. Disposable material allows you to conveniently discard filled bags for time-saving replacement. Allergen bag is designed for Hoover HushTone Vacuum Cleaners (sold separately).