Mice are very sensitive to smell. The reason for this is that mice and rats have a poor sense of vision so their other senses must be heightened in order for them to survive.
Whether you're trying to keep unwanted mice and rats out of your home, or you live with a pet mouse, watch this video to learn about the 12 smells that mice and rats hate the most.

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Link to Mouse & Rat Ultrasonic Sound Deterrent (Guaranteed to Scare Mice):
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Peppermint
Mice hate the smell of peppermint and will avoid areas where it’s used. Many natural rodent repellents contain peppermint oil because the strong scent irritates rodents’ nostrils.
Vinegar
This homemade mouse repellent contains acetic acid, a scent that mice are highly sensitive to.
Once you've located droppings and feces of rats and mice, you'll know which areas they visit often.
Another way to get rid of rats using vinegar at home is to soak cotton balls in vinegar and put them in the places where they appear.
Chilli power
Chilli powder, chilli oil, and hot sauce in general are among the odors that mice hate.
This is because chili contains Capsaicin, a natural compound that irritates mucous membranes and eyes.
Ammonia and Chlorine
Ammonia and Chlorine are very common chemicals in the home as they are found in various cleaning products such as window and glass cleaners, disinfect sprays, laundry detergents, dishwashing detergents, bleach, and allpurpose cleaners.
Even though these chemicals have a strong smell that can be tough for us, it's way worse for mice. Breathing in these smells or eating products with these chemicals can seriously harm a mouse. So, it's important to keep these products away from your pet mice.
Mothballs
Mothballs are small balls of chemical pesticide made of Naphthalene. They have a pungent odor which is why they are commonly used as a moth repellent. Mothballs are harmful to humans if swallowed, or if large amounts of fumes are inhaled.
Although Mothballs can be harmful to your pet mice, they aren't powerful enough to get rid of unwanted mice and rodents in your home.
Citrus
Another scent that mice hate is citrus. Mice do not like the smell of citrus oils and will avoid areas where they smell them. Citrus oils are frequently used as a natural repellent for mice or rats. You can make your own homemade mouse repellent using essential oils like orange or lemon oil.
Predators Scent
As tiny rodents, mice and rats are vulnerable to many predators in the wild. Owls, hawks, snakes, lizards, dogs, foxes, and cats. Due to their vulnerability, mice have learned to smell their enemies and avoid areas where these predators are present. One way they detect the presence of predators is through the scent trails left by their urine.
If you live with rats or mice, along with other pets like cats or dogs, we recommend ensuring they are separated from any areas their urine may be present, and that they are cleaned with enzymatic products.
Cinnamon.
Cinnamon is another natural repellent that mice hate. If you have unwanted rats or mice in your home, you can sprinkle cinnamon powder around your home or burn cinnamon incense.
You can also stash some cinnamon sticks in drawers, closets, cabinets, and underneath furniture.
Perfume and alcohol
Perfumes are made with different components, among which are distillates of essential oils from plants and alcohol.
They often contain sulfur and other inorganic compounds.
Perfumes have different aromas that are pleasant for humans but intolerable for many animals including rats and mice.
In small rodents such as mice, irritation of the nasal passages is a common reaction so they prefer to stay away from these odors.
Eucalyptus oil
A great deterrent for not only mice but insects too. Eucalyptus oil has been proven to have strong repellent effects against rodents. It can significantly reduce the likelihood of an infestation when applied around the house.
Onions
We all have garlic and onions in our homes, and such smells are repulsive to mice and rats.
You can chop up an onion and place it in areas where you see evidence of mice, such as droppings or nests. The smell will keep them away from the area where it has been placed.
Lavender
Mice hate the smell of lavender. You can use a lavenderscented spray or even better, you can grow a lavender plant, which will repel mice from your home naturally.
Certain sounds
In addition to these scents, rats and mice are known to be sensitive to specific sounds.
There is evidence to suggest that certain types of highfrequency sound can be effective in deterring rats and mice. Rodents have a broader range of hearing, and these sounds cause distress to them.