The window fly screen is designed to prevent flies, wasps, moths, mosquitoes and other flying insects from getting into your home. Easy to install and almost invisible on a window, the mesh allows you to open windows and have fresh air without bugs in the home. Prevents flies, wasps, mosquitoes, moths and other flying insects entering your home Ideal for kitchens and conservatories Protects up to 30 cubic meters Mesh size is 1.5 square meters No poisons – safe to use