What does protection factor UPF mean?
What does the term "UPF" mean?
Ultraviolet Protection Factor!
The regulations of UPF follow the Australian / New Zealand norm (AS/NZS 4399:1996). This allows a catalogisation of the UV protection for textiles by the help of the combination of the spectral analysis of the sunlight and the sensitivity of humans. The size of UPF dedicates the UV protection of the measured textiles with
Good
UPF 15 - 24
6,7 - 4,2
Very good
UPF 25 - 39
4,1 - 2,6
Excellent
UPF 40 - 50, 50+
under 2,5
