That might feel like overkill, but if you're planning to use the L40 Ultra regularly then it's going to save you a significant amount of time and effort. Why we love it: The high-filtration dust bag and HEPA AirClean filter help keep dust from being released back into the air. https://knoxlnmkh.bloggip.com/34776197/quanto-você-precisa-esperar-que-você-vai-pagar-por-um-bem-top-3-automatic-vacuum-cleaners