He maru ārai-rā mō ngā āhuatanga katoa. He maha ngā maru takai, ahakoa te ua, te rā rānei, ka taea te whakamahi. Nō reira, he kino te whakamahi i te maru ārai-rā mō ngā āhuatanga katoa? Kāore i te nuinga o te wā.
Ko te mea nui mō te tiaki UV kei runga i te whakamahinga o te kakahu maru ki te UV. He rawaka te tiaki UV. He rerekē, he ngoikore te pānga. Heoi, he āhuatanga motuhake kei reira. Hei tauira, ahakoa kāore he maimoatanga UV, kei reira te vinyl. Engari he pai ake tōna pānga ārai-ultraviolet i ngā hua noa. Mena he pai te kounga o te papanga, ka taea e te tohu UV te eke ki te 600+, ā, tata ki te 100% te tere atarangi. Ina tangohia e koe he maru, whakatuwheratia kia kite i ngā atarangi i runga i te whenua. He pouri ake ngā atarangi. Mena he nui ake te UPF (uara tiaki ultraviolet) i te 30, ā, he iti iho i te 5% te tuku UVA (UVA) ka taea te kī he hua ātete-UV. Ko te paerewa taumata tiaki ko "UPF30 +"; Ina he nui ake te UPF i te 50, he tohu kei te pai te tiaki UV o te hua. Ko te taumata tiaki kua tohua ko "UPF50 +".
Wā tuku: Hepetema-24-2022