by ALI GOUDARZI
Ultraviolet (UV) radiation is a type of electromagnetic radiation that is invisible to the human eye. It has a shorter wavelength than visible light and is divided into three categories: UVA, UVB, and UVC. UVA has the longest wavelength, while UVC has the shortest...
by ALI GOUDARZI
Ultraviolet protection factor (UPF) is a rating system used to measure the effectiveness of sun-protective fabrics in blocking out UV radiation. The UPF rating system ranges from 15 to 50+ and indicates the percentage of UV radiation that is blocked by the fabric. For...
