"Laminated glass totally blocked UVA radiation, while smooth ordinary glass transmitted the highest dose (74.3%). Greater thicknesses of glass implied less radiation transmitted, but without a significant difference. Green glass totally blocked UVA radiation, while blue glass transmitted the highest dose of radiation (56.8%). The presence of a sunlight control film totally blocked UVA radiation. All glasses totally blocked UVB radiation."Factory windshields from pretty well all manufacturers will block very nearly all UV. I can’t comment on aftermarket replacements, but it’s the plastic layer laminated between the glass panes that really improves UV absorption so I would suppose that even aftermarket is good at this.
Side and rear windows generally block most all UVB, which is what causes sunburn. They often don’t block UVA as well, though. How well varies and isn’t tied to car price. I don’t know about Mazda windows specifically.
I never thought I'll ever "see" you! Then I don't have to go back to US. Not that I can afford to right now.
UV = Ultra Violet.I'm not paying $160 for the standard. What, exactly, do the letters "UV" mean?
Yes. What I meant was:UV = Ultra Violet.