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Industry NewsIndoor NB smoke detector smoke is a deadly demon in fire
Time: 2019-12-13 View: 1986
In life, many people think that in the event of a fire, the biggest harm to people is burns, in fact, smoke is the biggest risk factor for death in a fire, remind everyone to install smoke detectors in time, the first time to find the fire found smoke, quickly escape from the fire area.
Carbon monoxide is the main killer of heavy smoke. In air with a carbon monoxide concentration of 1.3 percent, a person loses consciousness after two or three breaths and dies after 13 minutes. Carbon monoxide in the smoke from burning common building materials is as high as 2.5 percent. In addition, the smoke from the fire contains a large amount of carbon dioxide. There are also some materials, such as polyvinyl chloride, nylon, wool, silk and other fiber goods burning can produce highly toxic gas, the greater harm to people.
Smoke and gas also cause inhalation damage. Inhalation injury refers to the injury of respiratory tract and lung parenchyma caused by the inhalation of certain chemical components in hot air, steam, smoke, harmful gas and volatile chemical substances by the human body, as well as the systemic chemical poisoning caused by the inhalation of toxic gas and substances. Mild inhalation injury is mostly limited to the mouth, nasal cavity and pharynx, clinical sputum containing carbon particles can be seen, mouth redness and swelling, sometimes blisters, larynx often have a slight pain and dry feeling. Moderate inhalation injury mainly invades pharynx, larynx and trachea, often accompanied by hoarseness, upper respiratory redness, edema. Severe inhalation injuries often affect bronchi, bronchioles and alveoli, resulting in airway mucosa shedding, pulmonary edema, atelectasis, and severe breathing difficulties.
Carbon monoxide is the main killer of heavy smoke. In air with a carbon monoxide concentration of 1.3 percent, a person loses consciousness after two or three breaths and dies after 13 minutes. Carbon monoxide in the smoke from burning common building materials is as high as 2.5 percent. In addition, the smoke from the fire contains a large amount of carbon dioxide. There are also some materials, such as polyvinyl chloride, nylon, wool, silk and other fiber goods burning can produce highly toxic gas, the greater harm to people.
Smoke and gas also cause inhalation damage. Inhalation injury refers to the injury of respiratory tract and lung parenchyma caused by the inhalation of certain chemical components in hot air, steam, smoke, harmful gas and volatile chemical substances by the human body, as well as the systemic chemical poisoning caused by the inhalation of toxic gas and substances. Mild inhalation injury is mostly limited to the mouth, nasal cavity and pharynx, clinical sputum containing carbon particles can be seen, mouth redness and swelling, sometimes blisters, larynx often have a slight pain and dry feeling. Moderate inhalation injury mainly invades pharynx, larynx and trachea, often accompanied by hoarseness, upper respiratory redness, edema. Severe inhalation injuries often affect bronchi, bronchioles and alveoli, resulting in airway mucosa shedding, pulmonary edema, atelectasis, and severe breathing difficulties.
