Don t count on this degree of protection to safeguard you against uv altogether when you occupy a vehicle.
Uv laminated car windows.
Some automakers like hyundai and kia are already using higher spf glass not only because it protects against uv rays but also because it helps cool down the car and thus improves fuel efficiency.
Laminated glass is made from laminated plastic between two layers of glass which is known to block 98 99 of all uv light.
South korean automakers hyundai and kia use window glass with an spf between 44 and 48 in those vehicles they assemble in the u s.
The problem though is that windshields only protect the front side of your face.
Laminated glass used for windscreens and tempered glass usually used for side and rear windows both block uvb radiation.
And toyota switched to laminated glass for the front windows of.
This exposure may prove especially damaging to long distance drivers.
However uva transmission depends on the type of glass.
Uv rays can pass through clouds and glass.
Side and rear windows which usually have only a single layer of tempered glass may only block about 65 percent of incoming uv rays.