首先納米百葉窗起qi到dao的de肯ken定ding是shi對dui空kong調tiao外wai機ji的de保bao護hu作zuo用yong，因yin為wei空kong調tiao外wai機ji是shi放fang置zhi在zai室shi外wai，不bu像xiang放fang置zhi在zai室shi內nei的de家jia電dian家jia具ju不bu用yong經jing曆li風feng吹chui雨yu打da。室shi外wai環huan境jing多duo變bian，所suo以yi我wo們men經jing常chang會hui看kan到dao鏽xiu跡ji斑ban斑ban的de空kong調tiao外wai機ji，有you了le空kong調tiao外wai機ji百bai葉ye窗chuang，就jiu能neng有you效xiao的de減jian少shao雨yu水shui對dui於yu空kong調tiao外wai機ji的de侵qin蝕shi

，防fang止zhi高gao強qiang度du的de太tai陽yang直zhi射she從cong而er導dao致zhi空kong調tiao外wai機ji使shi用yong壽shou命ming減jian少shao。