Review on 🔌 2-Pack of Magnetic Black Dust Proof Filter Covers for 360mm and 120mm x 2 PC Fans - PVC Computer PC Case Dust Mesh Filter Cover, 4.72inch by Pushkraj Love

So if you're thinking of buying one, you're obviously worried about what ends up inside your computer. You don't need dust, of course, but fresh, cool air and lots of it. This filter is very restrictive of airflow and in my application with two 140mm Noctua fans as intake fans, this filter just wasn't letting enough air through. This resulted in excessive temperatures in my setup and negative air pressure with (and getting) a stock exhaust fan on the back of my case. The air literally came in through the open louvers on the back of my computer. On the other hand, it is a well-made filter that prevents a certain amount of contaminants from entering your installation. The magnets are well attached and cut, and the material (except for its rigidity) is very good. Therefore it deserves 3 stars.