AhChoo
(1) What are the effects of shade(open shade and closed shade) on the UV index.?
(2) is there a chart or formula of minutes to burn time for unprotected skin according to the uv index?
Thanks,
Ah Choo
(2) is there a chart or formula of minutes to burn time for unprotected skin according to the uv index?
Thanks,
Ah Choo