8 何謂HEPA (high efficiency particulate air) filter?
(A) 將大於0.5μm 粒子濾掉之效能達到99.97%或以上之過濾裝置
(B) 將大於5μm 粒子濾掉之效能達到99.0%或以上之過濾裝置
(C) 將大於0.3μm 粒子濾掉之效能達到99.97%或以上之過濾裝置
(D) 將大於0.3μm 粒子濾掉之效能達到99.0%或以上之過濾裝置
答案:登入後查看
統計: A(85), B(14), C(160), D(8), E(0) #443313
統計: A(85), B(14), C(160), D(8), E(0) #443313
詳解 (共 4 筆)
#4882050
HEPA
E:3
p:9
2
0
#1221289
To qualify as HEPA by US government standards, an air filter must remove (from the air that passes through) 99.97% of particles that have a size of 0.3 µm
2
0