After too many years of getting frustrated when our so-called HEPA filtration bagless vacuums ended up spewing dust everywhere and they needed frequent thorough cleaning of sponges, tanks and parts that then needed to be left out to air dry lest they mold in the closet, we returned to the convenience and sanity of a bagged vacuum that happened to come with a canister vac - the Hoover Platinum Lightweight Upright Vacuum with Canister, Bagged, UH30010COM. After a year I am still in love with our Hoover Platinum system, but that's a story for the review of the vacuum.These Hoover Platinum HEPA bags are very durable and made of very good quality. They are a breeze to change and do not require any cleaning of filters or other nonsense, ever. SO HAPPY! They also are great at cutting down odor from having an indoor dog - if the bag starts to smell when the vacuum is running it's time to replace. That simple!The Q Bags fit the upright, the I Bags fit the canister vac. I will definitely buy again!