Salt Questions · Home, wellness & DIY
Can you use table salt to kill fleas in carpet?
Short answer
There's no good evidence that it works. The idea is that fine salt dries out flea eggs and larvae, but no published studies show it controls an infestation, and salt can attract moisture and damage carpets. Frequent vacuuming, hot-washing pet bedding and a vet-recommended flea treatment for your pets are the proven approach.
No good evidence; vacuuming and treating pets are proven
Where the idea comes from
Fleas spend most of their life cycle as eggs, larvae and pupae in carpets and pet bedding. Salt, like other fine powders, is said to dehydrate eggs and larvae. Pupae in their protective cocoons are especially resistant.
Why it's not recommended
- No reliable studies show salt controls fleas.
- Salt draws moisture from the air, which can leave carpets damp or stiff and encourage mould.
- Treating the house without treating the pet rarely works.
What works
- Treat all pets with a vet-recommended product.
- Vacuum carpets, furniture and floors daily for a few weeks and empty the vacuum outside.
- Wash pet bedding on hot.
- For severe infestations, use a household product labelled for fleas, or a professional.
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Cite this page
For school projects and reports. Teachers often prefer the original sources too: see the list below.
The Salt Almanac. (2026, November 8). Can you use table salt to kill fleas in carpet. https://saltalmanac.com/answers/can-you-use-table-salt-to-kill-fleas-in-carpet
“Can you use table salt to kill fleas in carpet.” The Salt Almanac, 8 Nov. 2026, saltalmanac.com/answers/can-you-use-table-salt-to-kill-fleas-in-carpet. Accessed [today's date].
“Can you use table salt to kill fleas in carpet.” The Salt Almanac. Last modified November 8, 2026. https://saltalmanac.com/answers/can-you-use-table-salt-to-kill-fleas-in-carpet.
Original sources
- Wikipedia. Cat flea. https://en.wikipedia.org/wiki/Cat_flea