Conversation: The conversation between human and AI assistant.
[|Human|] i have never been effected by old air conditioner that was previously installed in my house four years ago. I am not using any air conditioner since last four years. Yesterday i bought a second hand small air conditioning unit; i slept a night with this unit running and after that, i am feeling LITTLE CHEST HEAVINESS . Could this be cause of this second hand air conditioning unit or something else ? I dont have any other medical issue
[|AI|]  Hello, Yes, this can lead to chest tightness. Old air conditioners are not hygienic. Air provided by them is not humidified. So inhalation of this air can lead to bronchitis and this in turn leads to chest tightness. So better to check filters and humidifiers of your second hand AC. This chest tightness usually recovers in 1-2 days. But if it is prolonged then consult pulmonologist. Hope I have answered your query. Let me know if I can assist you further.