In the video, Long claims that the return air vents on your second floor should be slanted up rather than down. In other words, if you can see what’s happening inside the vent, they’re facing ...

The air return is a vent inside the house that cycles room air back to the AC. Your home’s air return may have a filter, too. If so, it is usually dirtier than the filter located in the air ...

Last, clean the vents on your ceiling. You can use a vacuum or broom to clean off the dust. For more, check out our article on how to improve your indoor air quality .

Hallie Fuchs struggled with rashes, brain fog and sinus infections so severe she needed surgery until TikTokers saw the black marks on her vent in the background of a video, and realized it was mold.