Do these filters block the UVA and UVB rays that fluorescent lights create?
1598573
I think so! I know that I have put them in four different classrooms. Everyone loves them! The children apear to be clamer and so do my staff. If youhave anymore questions please do not hesitate to ask. I am going to purschase more of them in the fall and I will be putting them in every classroom in my building!
1598574
Not sure on that one. It helps reduce my headaches I get from the lights though. That was my selling point.
794864
Website says blocks UV rays from up to 400 nanometers? Here's the link. http://www.bolle.com/technology/goggle/technology
357773
UV(C) passes much more ultraviolet light than UV(0) filters. Additionally, the Pro 1 coating is a little more transparent and easier to clean. Finally, the Pro1 rim is higher quality. See hoya's website below: http://www.hoyafilter.com/hoya/products/generalfilters/uvcslimframe/
1036932
Just like sunglasses that also mke things appear "darker", so does a circular polarizer filter for an SLR lens.I usually take this type of filter off if there is not glare during the 10-2 sun, and place it back on when I need a bluer sky or water tone. I does not good with lightness of items such as leaves or soft tones which a good lens with a UV filter will do. These periods of sunlight are also when one takes their sunglasses off unless they wear them to be"cool" looking
703992
I've had them for more than two years now. The effectiveness of the UV light doesn't seem to be affected with buildup although I change the light every year. The filtering is on the weak side.
2030470
i'm not sure, it doesn't mention anything about UV filters anywhere on the box.
1337726
It is best to not use a clear filter. A UV/clear filter can indeed affect image quality, particularly when the sun is in the frame. This can result in some rather un-attractive flare and blobs. As long as you keep the hood on when shooting, the front element should be protected, unless you are unreasonably hard with your gear.
691898
Unsure. I bought them specifically to protect my eyes from UV lamps operating in the 254nm range.
727744
The UV filter blocks Ultra Violet light which in certain situation can cause pictures to blur somewhat. They can be useful at high altitudes or places with very clear air. They are often used as a clear filter to add a layer of protection to the lens glass as the filter is cheaper to replace. The polarizing filter will filter out polarized light and glare. Its great for shooting in sunlight and will make colors much more vibrant (saturated.) I live in a desert area and never shoot outside during the day without one.
1343329
I have no idea if they will block UV...Asking the wrong guy this time, sorry.....
2225907
You CANNOT see the UV light. When the UV light is engaged, there is a bright blue indicator light. However, this is not the UV light. The blue indicator light will not damage your eyes or skin. The actual UV lightbulb is mostly protected from exposure inside the filter's housing. I believe the warning in the instructions refers to viewing the light when the purifier is disassembled.
1517691
I never tested it so I am assuming the UVB passed through since it is a thin plastic and I would have hoped the manufacture did test that. Also I felt it was safer to have a protective barrier between the water and the light tube just in case. UVB does pass though plastics and some glass but may be "diluted" or refracted and depending on the thickness and the clarity of the material it can be blocked completely. Also UVB does dissipate with distance so you need to read the details to ensure it is placed appropriately. Hope this helps....
91834
As far as I know bulb only produces uv light. I have mine installed just above the evaporator coils because I had read somewhere that it would help kill any mold growing on the coils but you can also install near the return air duct.
980732
They block and protect your eyes when using Black Light/UV. They would only enhance when using the "light" as far as contrast on urine.
2143179
Yes. Turn off all filters and just use this filter and uv light for two or three days. Amazing results.
1194714
I actually use it more for the vac, it does suck up pollen because the filter is full of the nasty yellow stuff, even tho I can barely see it on the surface. I assume that it's working on the dustmite droppings also. I can't really answer regarding the ultraviolet light, sorry. I do like this product, easy to use and lightweight.
1638869
Also, cost about $25 t0 $30 from iSpring. Free shipping and cheaper by the pair. They also sell sets of 3 years of filters except for the UV lamp. Best deal I have found.