每天穿这种羽绒服超12小时，男子呼吸衰竭！医生提醒

Core Insights - A man in Fujian was diagnosed with allergic pneumonia after wearing a low-cost down jacket for over 12 hours daily for four weeks, leading to severe respiratory issues and a blood oxygen saturation level dropping to 85% [2][4] Group 1: Health Risks - Prolonged exposure to down feathers can lead to "down lung," a condition where inhalation of small protein particles from down can trigger immune responses, even in non-allergic individuals [4][7] - Symptoms of "down lung" include persistent dry cough, shortness of breath after activity, and chest tightness, which can be mistaken for common colds or bronchitis [8] Group 2: Prevention Measures - Experts recommend checking if down jackets use anti-feather leakage technology, regularly airing them out, and ensuring good air circulation while wearing [6][8] - Regular cleaning and gentle handling of down jackets are advised to minimize fiber breakage and accumulation of down particles in the air [8]