Does Chlorine Kill Fleas? Questions About Bleach & Fleas Answered

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Does chlorine kill fleas? Chlorine does to fleas what pretty much any harsh chemical does to insects. But does using it make all the fleas effectively go away? Is it worth the effort?

Usually, posts would recommend making a bleach spray to get rid of fleas. But we’re here to tell you otherwise. Why? Find out the answer with these commonly asked questions on fleas and chlorine.

Does Chlorine Kill Fleas? Questions About Bleach & Fleas Answered

Bleach is a powerful chemical that can kill fleas with direct contact. CC Image courtesy of Mike Mozart on Flickr and Katja ZSM on Wikipedia

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What’s chlorine?

This question seems easy enough to answer. But there’s actually a common misconception about this substance. So before we head into how it can kill fleas, here’s a little background on chlorine.

Fundamentally, chlorine is an element, one of the most basic building blocks of matter. It’s combined with other elements, and it’s used in a lot of chemicals for sanitizing or disinfecting.

This brings us to bleach, that all-familiar cleaning agent that we use to whiten and sanitize our laundry. That bottle at the bottom of your sink doesn’t have straight up chlorine in it. What bleach has is sodium hypochlorite mixed with water. That chemical is totally different from chlorine, but it’s a kind of salt that comes from it.

But, since we’ve always associated chlorine and sodium hypochlorite in bleach to be the same, we’re keeping it that way in this post.

How do you use chlorine to kill fleas?

To get rid of fleas, chlorine has to make direct contact with them. And there’s only one way to do this: adding it to your laundry.

There is no other method that effectively uses this substance against these insects. It doesn’t work as a repellent, so spraying bleach and water into flea-infested areas in your house will only damage furniture, floors and carpets. Remember that chlorine or bleach is corrosive, and fleas are highly adaptable creatures that don’t seem to be all that affected by the bleach’s strong smell.

Does pool chlorine get rid of fleas?

If you’re thinking of using your pool as a kind of flea remover for you and your dog, it won’t work.

Diving into the pool won’t get rid of fleas. Just like in bleach, the “chlorine” used in pools is a combination of the element and a lot of other chemicals. But with this, there’s simply not enough of it in the pool to kill fleas. And if you add more than the recommended dose, you’ll just be endangering your family and yourself.

Can you use chlorine to kill fleas on your pets?

Fleas on your pets

Never use chlorine on your pets.

According to Pet Education, chlorine from bleach and swimming pool supplies is toxic to our furry friends. They irritate the, skin, eyes and mucous membranes. In rare cases where they’ve been eaten, they cause vomiting, drooling, stomach pain, sore throat, diarrhea and alkali burns in the soft tissues in the body.

Pets can’t inhale anything from that substance either. Breathing in fumes causes coughing and difficulty in breathing among other irritations.

So since chlorine is less than ideal in exterminating or repelling fleas, the question is not really “Does chlorine kill fleas?” It’s more in the realm of how you should put this substance to good use when it comes to pest control.

And your answer for that would be laundering. Doing the laundry is the only safe and effective way for chlorine to get rid of those pesky insects.

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