Soot around nares or in mouth
Carbonaceous sputum
Singed nasal or facial hair
Dyspnea, stridor, drooling, dysphonia, respiratory distress
Varies depending on substance burned in fire
Acrolein: found in wood and petroleum
Pulmonary edema, bronchorrhea, bronchospasm, VQ mismatch which can cause hypoxemia
Tearing, conjunctivitis
Hydrochloric acid: product of polyvinyl chloride (structural component of high-rise buildings, plastics) combustion.
Can persist in air up to an hour after fire extinguished
PVCs and other arrhythmias
Delayed onset (2-12 hours) pulmonary edema
Dyspnea, chest pain
Tuolene diisocyanate: seat cushions, carpet, insulation
Severe bronchospasm
Nitrogen dioxide: fires involving automobiles, agrecultural waste
Uncommon but brief exposure can be lethal
Severe bronchospasm, laryngospasm, pulmonary edema
Later: interstitial lung disease
Pulmonary edema, bronchorrhea, bronchospasm, VQ mismatch which can cause hypoxemia
Tearing, conjunctivitis
Can persist in air up to an hour after fire extinguished
PVCs and other arrhythmias
Delayed onset (2-12 hours) pulmonary edema
Dyspnea, chest pain
Severe bronchospasm
Uncommon but brief exposure can be lethal
Severe bronchospasm, laryngospasm, pulmonary edema
Later: interstitial lung disease
Carbon monoxide toxicity
Cyanide toxicity
Smoke inhalation injury
Smoke inhalation injury 
Inhalation injury
Chemical injury
Carbon monoxide toxicity
Acrolein
Thoracic trauma
Hydrochloric acid