This mixture of noxious gases produces an awful smell that cannot be ignored. A dead rat, mouse, or other animal smell can linger and produce an even stronger odor as time wears on until it's fully decomposed which could take 6 to 10 weeks.
How long does the smell of a decaying animal last?
Unfortunately it may take three weeks or more to completely decompose. A professional may be contacted to break through and rebuild affected walls. This can be costly and not a viable option. Even after elimination of the source of dead rodent smell, the unsettling scent may linger for up to two weeks.
Can you get sick from breathing in dead animal smell?
The smell of a dead rat can be harmful to a person's health due to the toxic gases and microscopic compounds of the dead animal that are constantly being released into the indoor air. Since most homes are not consistently ventilated, the gases permeate into the respiratory tract and can potentially cause illness.
How long does it take for a rat to decompose and stop smelling?
On average, a rat takes roughly 2-3 weeks to decompose; however, lower temperatures will increase this time period significantly. Once the body has decomposed, the smell won't instantly leave your home. Instead, the foul smell will still be lingering in your home roughly two weeks later.
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