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[单选题]
空调等通风设备消毒浓度为()
A.250mg/L含氯消毒液,消毒15min~30min
B.250mg/L~500mg/L含氯消毒液,消毒10min~30min
C.500mg/L含氯消毒液,消毒15min~30min
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
B、250mg/L~500mg/L含氯消毒液,消毒10min~30min
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.250mg/L含氯消毒液,消毒15min~30min
B.250mg/L~500mg/L含氯消毒液,消毒10min~30min
C.500mg/L含氯消毒液,消毒15min~30min
B、250mg/L~500mg/L含氯消毒液,消毒10min~30min
A.无论天气气候变化,必须做到每半日通风一次,一次不宜少于30分钟
B.开窗通风时,应注意避免因室内外温差过大引起感冒
C.不宜开窗通风的,应配备机械换气通风设备、
D.必要时采用循环风空气消毒机等进行空气消毒