I recently moved into my own place and apparently the previous tenants had cats because there is a horrible urine smell coming out of the one heat vent!!! I removed the insulation that was in it (covered in urine!) I poured baking soda in it, carpet fresh, bleach and still the odor lingers!!! What can I do?! I could see if it was in the carpet but in a vent?! I NEED to get rid of this smell before winter comes because the heat will just blow that smell through out my whole house!!! Please help!!!
It's not the vent cover, it's IN the vent itself which for some reason is wood and NOT sheet metal!!! Yeah so that makes it even more difficult to remove since with sheet metal it would be on the surface whereas wood…it soaked through!
Febreeze will only cover the smell.
First try cleaning it with vinegar. (yes vinegar has an odor to it too, but this neutrelizes the urine smell)
Afterwards, you will want to clean with regular house hold cleaner. (or NOW you can use Febreeze)