The sun's damaging rays can reach us even when we are relaxing inside, sitting in our cars or hiding behind a pair of sunglasses. Most people are unaware of the fact that windows, shade and sunglasses do not shield us from all of the sun's power. In fact some of the sun's most dangerous radiation is able to travel through standard glass or in and around sunglasses.  Standard window glass used for residential and commercial use filters out UVB radiation. Unfortunately, UVA and infrared radiation, which cause heat, are readily transmitted through standard glass.

Fortunately window makers and the sunglass industry have clued into these facts and are beginning to market more protective products. The variety of new window products that are flooding the market will likely be confusing to consumers. Some products filter out certain types of harmful rays, while other window panes are better protection for the other categories. The choices range from laminated glass to tinted glass to spectrally selective and UV-blocking insulating glass. The final note in sun protection when sitting near a window, be it in a home, office or car, is to remember that the window is not the exclusive form of protection for your skin. Wearing sunblock will help, a wide brimmed hat for the car is a smart option, a light weight, long sleeved shirt will also give your skin another shield against the sun.