This is the second filter I needed for my Bissel Clearview vacuum. Vacuums pretty well on its own as long as the canister filter is clean (yellow) but the filter doesn't stay clean for long and halfway through my 1200 sq ft living space it needs to be cleaned.The filter can be washed but then has to wait for it to dry and that's the problem.Now with the second filter I can just replace it and keep vacuuming.The extra external air filter is just a plus.