中央空调通风系统送风中的污染物是室内空气的主要污染源之一，主要的污染物是可吸入颗粒物和微生物。
The contamination in the central air conditioning duct system is the one of the principal contamination of the indoor air, it include inhalable particle and microorganism.
中央空调通风系统送风中的污染物是室内空气的主要污染源之一，主要的污染物是可吸入颗粒物和微生物。
The contamination in the central air conditioning duct system is the one of the principal contamination of the indoor air, it include inhalable particle and microorganism.
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