LPG gas is very sensitive and can cause Injury and burn, because it is cold. LPG gas is not toxic per say, but it is unpleasant and may also cause nausea if ingested in large quantities. When you start using LPG, some of the pressure in the bottle is released then boils to produce vapour. This explains why cylinder bottles feel cold to touch and why if there is a heavy off-take, water or ice may appear on the container. A good example is seen during the manufacturing of carbonated drinks, these beverages are artificially charged with carbon-dioxide. Air turn freeze. The same as the refrigerator.
Moisture sometimes forms in freezing, as upon a window pane or a flagstone. So as if you get expose to large amount of LPG gas. This can lead to destruction of tissue by freezing and characterized by tingling, blistering and possible gangrene. LPG gas will produce visible effects on the skin similar to frostbite. Frozen tissue appears with a rough or speckled surface or appearance. If proper care is not taken, the part could peel, causing large injured areas.