The strong scent of onions may deter mosquitoes and other pests. Placing a sliced onion near windows or your sleeping area can be a chemical-free way to keep bugs away.
4. Easier Breathing at Night
Some believe the antimicrobial properties of onions help clear the air, making breathing easier—especially for mild congestion or allergies. This is not a substitute for medical treatment but could offer some relief.
How to Test It Out
Cut an onion into halves or quarters.
Place it in a small bowl near your bed or nightstand.
Leave it overnight and observe any difference.
Discard it in the morning—do not reuse, as bacteria can grow.
Important Precautions
Keep away from pets (onions are toxic to cats and dogs).
Ensure good ventilation to prevent a strong smell.
Results vary—don’t expect miracles.
The Verdict
Scientific evidence is limited, but onions may help with air purification, insect repellent, and respiratory comfort. Since it’s harmless and inexpensive, it’s worth trying as a simple home experiment.
