Besides keeping insects out, insect screens also trap dust and will need to be washed at least once a month. Spray with water to remove dust trapped on the mesh & dry it (like air-con filter) before putting it back on your window.
Besides keeping insects out, insect screens also trap dust and will need to be washed at least once a month. Spray with water to remove dust trapped on the mesh & dry it (like air-con filter) before putting it back on your window.