Used in research settings to quantify Clara cell secretory protein (CCSP) levels in biological samples such as bronchoalveolar lavage fluid, serum, or tissue homogenates. This assay helps assess lung epithelial injury and airway inflammation, particularly in studies related to respiratory diseases like asthma, COPD, and pulmonary infections. The kit supports evaluation of lung barrier function and response to environmental or toxic exposures in preclinical models. It is intended for research use only and not for diagnostic procedures.