UVB may not be as prevalent but they are very powerful. UVA penetrates the skin and causes a lot of damage underneath and has a link to most skin cancer cases. It is known as the silent killer because you can't feel the effects of UVA exposure as it's happening and why it's such a concern for parents during long car journeys in the summer.
UVA represents 95% of all UV light that reaches our skin, says Paula's choice. What's the difference between UVA and UVB? UVA All glass protects from UVB rays whether it's tinted or not. So to conclude, privacy glass provides nothing to protect passengers from harmful UVA/B rays and you will need to seek a different way to stop them (explained below). However, ultraviolet is a different spectrum of light to VLT, and therefore none of the benefits applies. Privacy windows will have a score of how much light they impede from coming in which is called visual light transmission or VLT for short, in percentages, with a legal maximum of 50%.
The main benefit of having these is in the name - to add a level of privacy for the rear passengers which is sought after for people with children, especially babies. They are made by dying the inside of the glass, giving it a darker hue but ultraviolet rays can still penetrate it.
Privacy glass will not stop ultraviolet rays coming in through side car windows.
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