Methane is harmless in small amounts. When methane is introduced into an environment such as a home, it depletes the air in a room. In small amounts methane can cause headaches, nausea: this is a byproduct of asphyxiation. Decreased oxygen intake can also cause loss of consciousness. However, if in confined spaces, methane asphyxiation can cause death.
Methane is a colorless, odorless, tasteless, flammable gas. However, methane processors place chemical agents into the gas that give it a strong odor: this done as a safety precaution.
Methane buildups can be extremely dangerous. Methane is extremely flammable and can explode at concentrations between 5% (lower explosive limit) and 15%.
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