Are these UV protected against yellowing?
846654
Yes. There is some UV protector on them. They will still yellow eventually though.
1435569
yes they work great. I use them when I ride my motorcycle and they are tinted along with uv protection which makes everything clear and my eyes don't hurt even after being on the highway in the sun all day. Are they safe around a bright welding light no they don't take the place of welding shield but they work for daylight.
588172
I'm sorry to say that I have no idea. I have many pairs of glasses and all offer protection from UV rays.
1972712
Yes they are long lasting I have had mine in for three years. and they are a bright white instead of a dull yellow.
192842
Hi Sandra, I'm not sure about any UV issues regarding the usage of these lights. There are numerous studies on the benefits of the red lights and blue lights. I would suggest asking the seller. Good luck.
244031
I just received my order. Right on the side of the box for Model DPG28 it has a label that says: "99.9% UVA-UVB Protection." Can we please just retain what we "think" and only share what we know? I was wondering this same thing before I ordered, and the comment below almost caused me to not purchase them. Then I figured that it would almost be impossible to have darkened lenses that don't offer any such protection, so I looked it up online and found a vague answer saying that they did offer some kind of protection. Very pleasantly surprised to see that they offer such thorough protection!
1929624
Yes, they are. I haven't used all the colors yet, but cyan and yellow worked flawlessly.
464928
I have only used the Waterstop with UV protection. I have used it on both light and dark leather handbags. The light one I have is a bright yellow. I noticed no difference in the color after application.
979153
I am not totally sure of that answer, I just figured it was like clothes, if its covering up you aren't getting the full impact of the UV light, just like when you are out in the sun, your clothes protect your body. I think its better than not using them at all.
550560
I don't see any yellow in mine. They are a very light tan, or what some would call a "putty" color. Hope this helps.
49118
I don't know about the acid-free thing, but I have been using them for my vacation photos for over 10 years and have not noticed any yellowing. I still use them today and just bought another album last year for our trip to Turkey. I hope I have helped some. So far, I think they they are a pretty good product and I particularly like the large size. H.S. Johnston
2195265
No, but all of the lenses block 99% of UV light, and the dark ones do help with reducing glare. I am actually using them as sunglasses.
560011
We use this on gourds that have pen drawings on them. I don't believe it has any real UV protection so protecting from sunlight will still be important. The colors have stayed true for 1.5 years.
1992451
I don't know exact numbers on the UV protection but they definitely keep the sun out so I'm sure the UV protection is pretty strong.
1343329
I have no idea if they will block UV...Asking the wrong guy this time, sorry.....
611376
Ooops. Not see through, if they were see through I doubt that there would be any UV protection..
265319
I don't see that these are specially treated to increase UPF (sun protection factor), but any fabric will offer more protection than NO fabric, and silk naturally blocks more UV than cotton. Darker colors block more UV than lighter colors which may impact your choice if higher UPF is your goal.