POWERTEC self-cleaning fleece filter bags are the ideal solution for the optimal effective and hassle-free fine dust Collection in your home or professional workshop. Cleaner fresher air and tidier workroom surfaces are a cinch to achieve with these durable and high-performing filter bags. The HEPA style fleece construction is tear resistant and possesses a unique pliability, which insures that any dust and debris that cakes on its inner filtering surface will automatically slough off. This continuous and automatic fine-particle shedding insures optimal filtering action, even when the bag itself is virtually at full dust-holding capacity, thus, insuring Peak performance at all stages of the bag's fullness. With their stellar filtering capacity, these indispensable bags successfully Trap dust, debris, allergens and other particulate matter, up to 99.97% of particles. An auto-close bag feature prevents unnecessary mess and clean up. Also, because your filtering bag is efficient and effective throughout its use, it won't negatively impact the running of your dust Collector itself. Compromised filtering execution that can occur in more rigid filter bags can strain and stress your dust collector's motor and cause premature motor burnout and because of the substantial filtering action of the fleece bags, your HEPA filter won't have to work so hard, which effectively maximizes the potency and lifespan of the HEPA filter as well. Comes in convenient 5-Pack.