Double pane house window designs provide home and property owners with security from outside elements and some degree of protection from breaking and entering. Double pane house window designs have several key advantages over standard window designs. Among these are better insulative properties, noise reduction, and ease of cleaning. They can also protect items in the house from sun damage, and they easily slide open and lock closed with no cranking or lifting necessary. In double pane house window designs, two facing glass panels are set in a frame, separated by a small space 0.5 inch to 0.75 inch (12.7 – 19.05 mm) wide. The void might be filled with air or nontoxic gasses like argon, which can improve insulation. Decorative frames might also be installed between the glass panels to give the impression of individual windowpanes.