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Chronic Obstructive Pulmonary Disease (COPD)

  • Cigarette smoke exposure modeling

    Cigarette smoke exposure should be done not less than twice a day for at least 30 minutes each time, with an interval of not less than 4 hours. The CO concentration is about 1000ppm, the O2 concentration is more than 18%, and the CO2 concentration is less than 5%, lasting 75 days.
  • Pulmonary Function Tests

    FEV, FVC and other parameters are detected by PFT system