5. Smoke Inhalation
You could be at risk of smoke inhalation if you are ever trapped near a fire and happen to inhale some of the smoke; this can also happen with fires inside closed quarters, again where you happen to inhale some of the smoke in the process. If you are ever trapped in a house or building fire, then you should remember to go down low: Heat and fire will naturally travel up, and the lower you are able to go the less likely you are to breathe in the smoke.
Smoke inhalation will immediately affect your lungs, and if you inhale too much smoke, it will filter out the oxygen in your lungs and leave you breathing carbon monoxide instead. This can cause fainting, which is extremely dangerous to your health, especially if you are still trapped in the hazardous environment. Smoke inhalation is usually treated with immediate hook-up to oxygen supply.