免费在线观看视频-免费av片-奇米四色777-国产精品久久AV无码-日本v片-久久成人毛片-欧美激情国产精品-国产在线一区二区三区四区-国产传媒视频在线观看-99精品久久久久-成人黄色免费看-俄罗斯破处-草久免费视频-国产精品成-亚州av综合色区无码一区

400 086 1088

CN

Air Conditioning and Ventilation

Air Conditioning and Ventilation

O2, CO, CO2, NO, NH3           

The main function of the ventilation and air conditioning is to provide the oxygen required for the human breathing, to dilute the indoor pollutants or odors, to exclude the harmful toxic substances and other pollutants produced by the indoor process, to remove the indoor heat or residual humidity, and to provide the indoor air required, mainly in the factory, conference room, and other building rooms. Environment and so on.

In recent years, CO poisoning and ammonia explosion related to ventilation and air conditioning systems are frequently reported in newspapers. Many green building design standards stipulate that the underground garage with mechanical ventilation should be monitored and controlled in real time for the CO concentration, and the refrigeration machine room pays more attention to the monitoring of the leakage of ammonia gas. More attention is paid to personal health, and more oxygen and carbon dioxide concentrations in indoor air become more important.

ONUEE / ONWARDS(HK) Ltd. All rights reserved  ?2004-  備案號粵ICP備09176163號