Do ultraviolet rays pass through curtains, etc?
I’d reckon that if light is passing through the bedsheet, UVA rays are passing through it too. If you’re worried about it, you can put a film on the window to block essentially all the UV light. According to multiple sources (NASA, FDA, and others) here are the wavelengths of the UVA, UVB and UVC regions: UVA 400 nm – 320 nm UVB 320 nm – 290 nm UVC 290 nm – 100 nm UVC is blocked by Ozone in the atmosphere and we’ll not see very much of it to worry about. UVB is what is mainly responsible for causing sunburn and is blocked by standard glass windows. UVA is 20 times more abundant than UVB and can pass through glass. UVA affects long term skin damage and may lead to melanomas. There are window films you can get that are like stickers to put on windows which block UVA radiation. The following website shows a list of manufacturers (sorry but it’s a distributor’s website). Most of them have dealers in many areas and are professionally installed. One dealer (Gila) has film you can buy at Lowe
