Review on 🧹 Reusable, Washable Shop Vacuum Filter Cover [10 Pack] - Reduce Dust Build Up – Ideal for Most Canister Vacuums – Shopvac Prefilter by Trish Edens

This restricts airflow/suction immediately after installation. From there it only gets worse. As soon as dust accumulates, the suction power quickly drops to almost zero. I've found that simply using an open hepa filter works well. The suction starts and stays strong until the filter is clogged. Then all that remains is to empty the canister, shake the dust off the filter and get back to work. Save money and buy quality filters for vacuum cleaners.