Your Questions on Sun Protective Clothing Answered | The ...
Apr 26, 2011·SPF is for sunscreens and stands for Sun Protection Factor. One important difference is that UPF tests both UVA and UVB protection levels while SPF only tests UVB. Q. How much UV protection does normal clothing provide? A. There is quite a range. Studies in Australia and Germany, that we have replicated here in the US, show that a summer t ...