It is bad enough that the air that we breathe could be killing us, so it is sad to think that our car windows could be doing the same thing. It is common knowledge to most that UVA rays are harmful to the human body. Extreme exposure to UVA radiation can lead to skin cancer and other ailments. A recent study conducted by Dr. Brian Boxer Wachler of the Brian Boxer Wachler Vision Institute in Beverly Hills showed that the UVA radiation protection of the car side windows is little to none in most models.
Dr. Wadler performed the study utilizing 29 different cars from 15 manufacturers that were produced between 1990 and 2014. His research found that the majority of front windshields did provide protection from UV rays, however, the same could not be said for the side windows. This could mean detrimental harm to your health if you are an individual who spends many hours driving or commuting back and forth to work.
Recommendations have been made to manufacturers of automobiles to increase the UV protection in all of their windows, not just the windshields. However, it could be several years before we see manufacturers take note of this and apply it to their designs. In the meantime, we suggest that you apply sunscreen if you are going to be driving for long periods of time to prevent your car window and the harmful UV rays coming through it from giving you skin cancer.