No More Cockroach (from ceiling ventilator) Published December 11, 2018 at 703 × 605 in InsectOut Magnetic Insect Screen & Window Mesh ← Previous Next → Ms A saw cockroaches coming out of her ventilator fans (in her bathroom) and use cloth mesh with packing tape to cover the holes. It works but very ugly – not compatible with her beautiful new home. That’s why she chose InsectOut Magnetic Insect Screen