Gnats can be a real nuisance. Not only are they persistent, but they can reproduce at an alarming rate. Fortunately, there are a number of scents that gnats hate which you can use to repel them with ease. Check out this list and give them a try!
While gnats love all things sticky, fruity, and sweet, the smell of lemons is an exception. If you want to leave gnats running, use the scent of lemons. You can do this by using a lemon gnat-repelling spray, essential oil, candle, or boiled lemon peels. The acidity is too much for these small flying insects.

Furthermore, visual representations like the one above help us fully grasp the concept of Acidity Smell To Repel Gnats.
Fruit flies and fungus gnats, both commonly referred to as gnats, rely heavily on their strong sense of smell to navigate. You can take advantage of this trait and repel gnats by using scents they hate such as peppermint, lemon, eucalyptus, vanilla, lavender, citronella, and DEET.

The only way to get rid of gnats without killing them is to repel them with scents they don't like: vinegar, vanilla, pine oil, peppermint, lemon, eucalyptus, and lavender.

Certain smells, such as citronella, lemongrass, and peppermint, have been shown to repel gnats and can be used in various forms, including essential oils, sprays, and candles.