Magnetic FrameFloor air vent cover is designed with a rectangular magnetic frame, making it very easy to install, which is easy to firmly attach the metal surface with a clickDebris CatcherMagnetic frame vents filter has countless fine net holes, which not only catches debris and prevents small items such as keys, jewellery, biscuits and so on from falling into the ventilation ducts, but also blocks, spiders, cockroaches and others from crawling into the ducts, while also ensuring good breathability.Good ventilation - Glass fiber mesh is committed to achieving unparalleled ventilation performance, with a blocking rate of only 1%, while being able to capture any debris. Long term savings in water and electricity costsPrevent insects from entering - prevent insects, spiders, or any other insects from entering your home through air ducts, especially in the bedroom.PVC MaterialFloor air vent cover is made of high quality PVC material, sturdy and durable harmless that can be used for a long time with confidenceWide ApplicationMagnetic frame vents filter net is a good helper in summer, which is widely used in floor, bedroom, ceiling, wall, office, bathroom, toilet and other vents or exhaust fan vents