These openings are pledged with gaps and leaks because of metal to metal construction and ineffective the closures and fasteners used. This has resulted in major leaks and voids that allow the entry of dust, insects, lizards and cold air. The system health impacts include avoiding contracting malaria and bacterial infections caused by insect bites. Reduces health problems related to dust like chronic sore throat allergies, itchy eyes and asthma. Have you very found yourself clapping in your sleep and there is no music playing! You are probably chasing mosquitoes. The Window Guard System uses a series of weather proofing strips, specialized custom-made dust and pollen inhibiting screens, adaptations to the existing hardware and closure to assure a tight fit to seal out cold, drafts, dust and pest.