This is a 35 year old EMT who presented to HH with severe SOB and hypoxia. He was feeling well, but the day before admission applied waterproofing aerosol to his boots outside in a well ventilated area for 20 minutes. The next day he was SOB and came to the emergency room. He was a smoker but did no elicit drugs. He revovered over the next 24 hours. He has no known systemic disorder
What is the cause of the lung injury?