Yes – all glass has some protection against UV. The rejection of UVB is in most cases far greater than UVA – you may be exposed to up to double the amount UVA when driving. Given that both UVA and UVB have been proven to be harmful and contribute to skin cancers, it is important to ensure adequate protection from both types of UV (which is why we use broad spectrum sunscreens). Installation of a high performance window film will protect against prolonged exposure to both UVA and UVB.