Does Bleach Repel Mice?

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Bleach is not an effective way to repel mice. Although it has a strong, unpleasant smell that turns most animals away, you would need to use large quantities of high concentration bleach to effectively repel mice.

Does bleach repel mice?

Many online resources suggest using bleach to repel mice, but is it an effective way to prevent rodent infestations?

Bleach is partly effective for repelling mice because of its pungent chemical fumes. The smell of bleach is as unpleasant for rodents as it is for humans, so spraying pure bleach around rodent nests can repel mice. If you continue to spray bleach around your house, the strong, unpleasant smell may repel mice.

However, bleach is not an effective long-term solution against rodent infestation. This is because you would have to regularly apply large quantities of bleach to parts of your house, which is dangerous for both you and any pets you may have. The bleach fumes can pose serious health risks if inhaled, and if your pet comes into contact with the chemical, it could have deadly consequences.

Does bleach kill mice?

Bleach can kill mice, but only if consumed in large quantities. However, it is highly unlikely that a rodent would eat something contaminated with bleach, so this is an ineffective way to kill them.

If you want to get rid of mice, there are better ways than spraying bleach at them. Poison baits and mechanical traps are far more effective pest control methods than bleach and are much safer to use at home.

What does bleach do to mice?

The pungent smell of bleach is offensive to all animals, including mice. If large quantities of bleach fumes are inhaled, they can cause respiratory problems and reduced oxygen intake.

The fumes may even cause permanent damage to the tissues of the nose, eyes, throat, and lungs.

Bleach can burn the esophagus and other inner tissues if ingested, with potentially fatal consequences. Unfortunately, a mouse is very unlikely to eat something soaked in bleach, so this is not an effective way to kill rodents.

Bleach recipe to repel mice – Homemade bleach spray

Homemade bleach sprayBleach may not be the best method for repelling rodents, but if you want to give it a try, you can mix up a bleach spray at home. Mix up a water and bleach solution in a spray bottle and apply it to parts of your house where you have seen mice, then monitor the areas for signs of further rodent activity.

The problem with using bleach to repel mice is that you have to use a lot for it to work. Bleach repels mice at high concentrations but, as studies have shown, does not appear to affect them at low concentrations (10%). 

Safety guidelines recommend that you always dilute bleach with water before using it at home, so using a strong bleach solution is not recommended.

Clorox vs. Bleach

Clorox is a bleach product produced by a company of the same name. Clorox bleach is no different from any other concentrated bleach product. 

Does bleach have any use in rodent control?

The pungent smell of bleach may repel mice, but it is far more useful as a cleaning product. Getting rid of mouse droppings is just as important as repelling mice, as rodents harbor many disease-causing bacteria and viruses (such as Hantavirus Pulmonary Syndrome).

A diluted bleach solution (containing 1 part bleach and 9 parts water) can effectively kill harmful bacteria and viruses found in mice droppings and urine. This is an essential aspect of pest control, as contact with rodent droppings can cause serious health issues.

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7 steps for using bleach to clean up after rodents

Mice hate the strong smell of bleach, but it is better used as a cleaning agent than as a form of pest control. 

1. Put on your protective gear

clean up after rodentsBefore applying bleach, put on rubber or latex gloves to protect your skin. If you have had a long-term problem with mice, you may also need to wear a mask and eye protection. This is because old droppings can release dust particles, which can be harmful if inhaled.

2. Make a diluted bleach solution

The recommended concentration of bleach for cleaning purposes is 1 part bleach to 9 parts water. Carefully mix your solution in a spray bottle.

3. Spray the droppings with bleach

Once your bleach spray is ready, you can start cleaning. First, spray all rodent droppings with bleach spray and leave it to soak for 5 minutes. Most of the droppings will be found near nests, entry points, and other areas with large numbers of mice and rats.

4. Spray nesting materials and dead rodents

If you find a mouse nest, you will probably come across nesting materials and a dead rodent or two. Spray any dead mice and nests with the bleach, and leave them to soak for 5 minutes.

5. Clean away the droppings

Clean away the droppingsWhen you have finished applying bleach to the droppings, start cleaning them away using paper towels. Dispose of all droppings, nesting materials, and dead mice in the outdoor garbage.

6. Disinfect the area

Next, you will need to disinfect the area to kill any remaining harmful bacteria. Use your bleach spray to clean everything that may have come into contact with the mice’s droppings or urine.

7. Wash up

Once you have cleaned up after the mice, you will need to thoroughly wash your hands. Dispose of your gloves in the trash and disinfect your hands with hot, soapy water. If you have rubbing alcohol, you should also use this to kill any residual germs.

Are there any natural ways to repel mice?

Bleach may not be the best way to repel mice, but, fortunately, there are other scents that mice hate even more.

One study found that various essential oils (including geranium oil, chili oil, and peppermint oil) had a repellent effect on rats and may also be used to deter mice. Therefore, using essential oils against mice and rats may be a safer and more effective way to prevent infestations.

natural ways to repel micePeppermint oil, in particular, has a strong smell that, while pleasant for humans, will offend mice. To use it as a repellent, soak cotton balls in the oil and leave them in areas with high levels of mice activity, such as nesting areas and entry points. This may cause rats and mice to abandon their nests and stop other rodents from moving in.


Bleach has an unbearable pungent smell that many people say repels mice. While strong-smelling chemicals can keep critters away, this is not the most effective way to get rid of mice. Bleach is best used as a cleaning agent and not as a form of mouse control.

If you have a large or recurring infestation of mice, you will need to use an integrated pest control plan to get rid of them. The most effective methods of killing mice are traps and poison baits, while regular cleaning and proper food storage will help to stop them from coming back.

Contact your local pest control service for an expert assessment for professional advice about mice.

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