Wilson’s Australian Made Blockout Blind Fabrics are all rated to Ultraviolet Protection Factor UPF 50+ which is the highest rating, providing “Excellent Protection” from the harmful ultraviolet radiation.
UPF testing involves exposing a fabric to ultraviolet radiation (UVR) and measuring how much is transmitted through the sample.
UVA (long wave UV) Transmittance: 0.000
UVB (short wave UV) Transmittance: 0.000
Ultraviolet Protection Factor: >300 (50+)
UV radiation is part of the light spectrum that has wavelengths shorter than visible light, making it invisible to the naked eye. These wavelengths are classified as UVA, UVB, or UVC.
UVC rays are mostly absorbed by the ozone layer and do not reach the earth, however both UVA and UVB penetrate the atmosphere and play an important role in conditions such as premature skin aging, eye damage (including cataracts), and skin cancers. They also suppress the immune system, reducing your ability to fight off these and other maladies.
Wilson’s Blockout Blind Fabrics let through 0.000 UVA and UVB rays, making them excellent at protecting against harmful UV radiation.