As Fennelly (2017:279-282) noted, glass-windows tend to play a health-giving role by allowing sunlight, visibility and ventilation into a building and making the structure a healthy facility. Using up-to-date and innovative technology often contributes to a relaxed, healthy and healthy standard of living in any community. If you are inspired and in agreement with author Fennelly, use your physical security expertise to provide well-synthesized descriptions on the importance of glass-windows and contribution to relaxed and healthy standard of living in any community. Indicate which of these categories of five glass-windows will satisfy the “relaxed and healthy standard of living in any community:” laminated, sheet, tempered, bullet-resistant and float glasses.