HVAC Tips

Dead Animal Smell Coming From Air Vents

Dead Mouse In Ductwork Yes, many duct cleaners provide, and even promote fogging the ductwork after cleaning. It is neither encouraged, nor discouraged by the EPA and the National air duct cleaners Association ( NADCA ), an association which trains and promotes air duct cleaning industry standards. The bad smell will go away within an hour. For more information
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Once the decomposition is under way, you can mask the smell by placing an odor eliminator or neutralizer in front of any of the vents in your home that the smell is coming from … you are in contact …

In extreme cases, a fan or blower may be needed to move the humid air from under … often think there’s a dead animal in their ductwork, but that’s actually very rare. Usually, it’s just the airflow …

According to O’Loane, one of the first signs of birds or other small animals … odor coming from the dryer. In one case, O’Loane found no indication of a bird’s nest. It wasn’t until he removed the v…

Set up a stepladder, and smell each air vent register or return in the affected area. The dead animal carcass will be closest to the vent with the strongest odor.

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Sometimes a dead animal smell in the ducts is, well, a dead animal. Dead animals leave behind nasty contamination and need to be handled accordingly. Similarly, a skunk can spray the AC unit or ducts. The smell can be very obnoxious and if not treated by trained professionals, can linger for a very long time affecting the whole house and all the contents.

Dirty filters or coils can cause a mold or mildew smell when you turn on your air conditioning, but a rotten or sewage-like smell is usually caused by a dead animal or actual sewage … from a rupture…

If there are dead animals in the ducts, finding and removing them can be a bit challenging, but I’m up to the task. The job is made easier by the strong stench coming from one or two particular vents, and then I can trace them back and get an approximation of the spot where the dead animal lies.

Dead mouse (or animal) smell in vents? Part II When an unpleasant odor is coming from somewhere inside the house, many homeowners sometimes wrongfully jump to the conclusion that a dead mouse (or animal) is trapped somewhere in their ductwork – that’s why it’s important to check your drip pan and coils for buildup, and your ductwork for mold …

If the odor is strongest from the ducts and there is no sign of any dead animals near the fans or air returns, then you may want to try cleaning the ducts yourself. This method allows you to clean your ducts several feet into the ductwork, but it will not reach all of the way through the ducts.