Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Does Chlorine Kill Fleas? Vet Reviewed Effectiveness & Safety Tips

chlorine solution in glass

Fleas are one of the downsides to owning a pet. The tiny bloodsuckers show up on your beloved animal, and then you find them everywhere in your home, including on you! Killing fleas can be challenging since they reproduce quickly, and the eggs can stay dormant for several months. Several flea control products are available, but some of them are not safe to use around your pets.

So, you might consider taking a more straightforward approach to ridding your home of fleas rather than trying commercial flea control products. But what works best? Does chlorine kill fleas? The answer is yes, chlorine can kill fleas, but it’s not an option we would recommend as it can be easily used incorrectly.

dogster paw divider

Chlorine & Pets

White chlorine bottle with yellow cover mock-up
Image Credit: antibydni, Shutterstock

The first thing to know about killing fleas is that you need to kill fleas at every life cycle stage. If you only kill the adults, the eggs will hatch, and the larvae will develop to take their place. Similarly, if you only kill the eggs, there will still be adults around to reproduce. So, if you want to get rid of fleas, you must also stop the reproductive cycle.

Chlorine is a disinfectant found in everything from bleach to the water in swimming pools. While it can undoubtedly kill adult fleas and eggs when used at specific concentrations, it won’t completely eradicate flea larvae and pupa. Chlorine can come in handy when cleaning countertops or other hard surfaces in the home or washing clothing, bedding, and pet beds.

But it cannot be used on your pets. Chlorine is extremely toxic in concentrated form and still highly irritant in diluted form if it gets on the skin, in the eyes, or is consumed. For example, the concentration in swimming pools is between 1 and 3 parts per million or 0.0001%-0.0003%.  Even the fumes from chlorine could irritate your pet’s eyes and skin, so you never want to use it directly on or near your pet. Instead of using chlorine, talk to your vet about the best flea treatment for them.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's our online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content Savings V1

How to Effectively Use Chlorine to Kill Fleas

If you want to incorporate chlorine into your flea-killing strategy, these tips will help.

  • When working with concentrated chlorine, ensure you are outside or in a well-ventilated area. Wear gloves to protect your hands, a mask to cover your mouth and nose, and glasses or goggles to protect your eyes.
  • Dilute chlorine with water according to the manufacturer’s instructions before using it to reduce the risk of toxic fumes or damage to surfaces, skin, or clothing.
  • You can use a diluted chlorine mixture to wash clothing and pet bedding and wipe hard surfaces in your home. Do not use it on wooden surfaces since the chlorine will leave stains.
  • When using chlorine, remove animals and children from the home and ensure your home is properly ventilated (open doors and windows). Also, remember to wear protective equipment like rubber gloves and clothing that thoroughly covers your skin while using this chemical.
  • NEVER mix chlorine with other chemicals! Combining it with other cleaning products can produce poisonous fumes.

Chlorine is an effective disinfectant, but as you can see, it’s hazardous to you, your pets, and your belongings if not used correctly.

dogster paw divider

How to Kill Fleas in Your Home Without Chlorine

If you’ve spoken with your vet about getting them treated, it’s time to remove the fleas, eggs, pupa, or larvae remaining in your home. You can treat your home without chlorine and without risking your pet’s health. Here’s what the CDC recommends for the removal of fleas:

  • Clean everything fleas might have come in contact with, such as surfaces, bedding, clothing, your pet’s crate, pet toys, carpets, etc. This will involve vacuuming, sweeping, and mopping your entire home. When cleaning clothes and bedding in the washing machine, use the hottest cycle to kill the fleas.
  • Treat your home with a flea control product.
  • Continue regular cleaning and vacuuming for at least two more weeks to ensure all traces of fleas are gone.
Sanitizing surfaces cleaning home kitchen table with disinfectant spray bottle
Image Credit: Maridav, Shutterstock

Prevent Fleas Before They Start

Of course, you can prevent fleas from taking over your pet and home with preventative medications. There are plenty of flea prevention products for your pet, and your vet can recommend or prescribe the ideal treatment. They will help you decide whether a flea collar, topical medication, oral medication, or other form of prevention is best.

You can also use natural methods of preventing fleas in your home, including baking soda, cedar, apple cider vinegar, diatomaceous earth, and more. However, before you use any natural method, you need to check to ensure it isn’t toxic to your pup. There are several items you would think would be perfectly safe for our pets that aren’t, so be careful! Natural methods rarely treat all stages of the flea life cycle, so be prepared for a long battle.

dogster paw divider

Conclusion

While chlorine, in some concentrations, can eradicate adult fleas and flea eggs, it doesn’t attack fleas at all life stages. It is also not the safest product to use in and around the home, so we recommend using some of the alternatives discussed above.

Chlorine is a powerful cleaner and disinfectant, but it won’t eliminate a flea infestation. Your veterinarian can help you protect your dog from fleas and keep them from invading your home.

See also: 


Featured Image Credit: chemical industry, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.


How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

6 Games for Dogs to Play in the Snow This Winter

While caring for your dog in wintertime has extra challenges, you can enjoy fun winter activities by taking advantage of freshly fallen snow....

How Aggressive Are Shiba Inus? Vet-Verified Temperament & Personality Traits

Shiba Inus originated from Japan and was originally used for hunting. However, because they are independent, aloof with strangers, and loyal, they were...

Zinc Neuter for Dogs: What Is It, Risk & Ethics

Neutering is a word most everyone can immediately recognize, it means to sterilize a male animal. Everywhere you look, you see people advocating...

Black Doberman: Info, Pictures, Origin & History

With their stoic appearance and loyal temperament, the Doberman, including the black Doberman, has been an iconic dog for decades. But when did...

More related

Polish Tatra Sheepdog: Breed Info, Pictures, Temperament & Traits

One of the rarest breeds in the world, the Polish Tatra Sheepdog is a millennia-old working breed that assisted rural people in the...

11 Best Eco-Friendly & Sustainable Dog Foods in 2026 – Reviews & Top Picks

Many people are implementing more eco-friendly lifestyles to help take care of our environment and those around us. There is no doubt supporting...

Tibetan Terrier Dog Breed: Info, Pictures, Facts & Traits

The Tibetan Terrier is an ancient breed native to the country in their name. Enthusiasts selectively bred this dog as a companion animal,...

Senior Dog Behavior Changes: Vet-Approved Care Guide

It’s a beautiful thing to watch your dog grow up and move from puppyhood to adulthood and eventually become a senior dog. Throughout...

Keep reading

Can Dogs Eat Kumquats? Vet-Reviewed Facts & FAQ

A kumquat is a small citrus fruit native to Southeast Asia that looks similar to an orange. They aren’t nearly as common as mandarin oranges but can still be found in kitchens around the world. Before you share your snack...

Can Dogs Eat Kumquats

Menadione in Dog Food: Vet-Reviewed Safety Facts

We all want to feed our dogs the best type of food we can. With such a plethora of choices on the market coupled with never-ending advice and opinions on which diet is best, what ingredients to avoid, and which...

Italian Greyhound dog eating from bowl at home

What Is Salmon Meal in Dog Food? Vet-Approved Facts & FAQ

Salmon meal is a rich, protein-heavy ingredient. Typically, it is created by drying salmon to remove most of its moisture content. This leaves a dried meal that is usually broken down into a powder. Since dry dog foods have little...

smoked salmon outdoors

Is Glycerin in Dog Food & Treats Bad for Dogs? Vet-Reviewed Safety Guide

We all know that one key to a healthy dog’s life is high-quality dog food. You look for ingredients such as whole meats and grains and ensure the diet is complete and balanced. You may not be looking for glycerin,...

dry dog food in bowl

Feeding Your Maltipoo: A Vet-Approved Guide

Maltipoos (a mix between a Miniature or Toy Poodle and a Maltese) are a popular breed due to their absolute adorableness and extreme cuddliness. These pups make excellent pets for adults and children alike, as they’re small, friendly, and playful....

Maltipoo dog near feeding bowl with dry food on floor in kitchen

10 Best Dog Foods for Border Collies in 2026 – Reviews & Top Picks

The food that you, as a pet owner, feed your dog is one of the most important aspects of keeping your pet healthy. If you own a Border Collie, then you know how high their energy and activity levels can...

Border collie holding food bowl

Can Dogs Eat Garlic Bread? Vet Approved Facts, Safety Guide & FAQ

Maybe you had some yummy garlic bread for supper and your dog stole a bite, or you’re just wondering if you can feed them some. Can dogs eat garlic bread? The short and simple answer is no. Garlic bread is...

Can Dogs Eat Garlic Bread

Can Dogs Eat Mexican Rice? Vet-Verified Facts & Tips

It’s not unusual for people to search for ideas on new things for their dogs to eat. Pet owners want their dogs to enjoy new things from time to time instead of routine dog food. Considering that rice is often...

Can Dogs Eat Mexican Rice