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

Why Is My Pug Licking So Much? 15 Vet Reviewed Reasons

As a Pug parent, seeing your furry little buddy constantly licking themselves can be concerning. While licking is a normal behavior in dogs,...

Jack Chi (Jack Russell Terrier & Chihuahua Mix): Info, Pictures & Care

The Jack Chi is adorable, friendly, affectionate, and energetic mixed-breed dog that comes in a small package, with a big attitude and a...

Glucosamine for Dogs: Our Vet Explains the Usage, Dosage, Side Effects & FAQ

Glucosamine is a popular nutraceutical product that is marketed to have many health benefits for dogs, especially for joint health as well as...

Cane Corso Dalmatian Mix: Info, Pictures, Care & More

Ever heard of a beefy Dalmatian or a spotty Cane Corso? Yep, these actually exist—in the form of the elusive but stunning Cane...

More related

Summer Safety Tips for Dogs: 7 Vet-Verified Ways to Stay Safe

Is there any better way to enjoy the warm months of summer than with your best friend? Summer is ideal for walks in...

Are Pit Bulls Banned in Australia? Restrictions & Facts

Pit Bulls and Pit Bull-type breeds have a reputation for being aggressive, and they are banned or controlled in many countries, including Australia....

Penny’s Kayaking Adventure: Why I Take Her With Me

Hi, I’m Savanna! Read my introduction to learn more about me and my spunky Chihuahua mix, Penny. Small dogs have a reputation for...

5 Common Misconceptions About Homeopathic Veterinary Care

I am a Cornell-trained veterinarian who left traditional practice over 20 years ago to pursue homeopathic veterinary practice full-time. Homeopathy, a 200-year-old system...

Keep reading

Essential and Non-Essential Amino Acids for Dogs: Vet-Verified Facts & FAQ

Amino acids are the building blocks of protein and, therefore, necessary for the synthesis of muscle and tissue. They also play a pivotal role in other metabolic processes in the cells. In nature, we can find 22 different types of...

Products rich in amino acids

Instinct Dog Food Review 2025: Recalls, Pros & Cons

Review Summary Instinct Dog Food is made by Nature’s Variety, a brand that’s been in operation since 2002, specializing in holistic pet food. None of its formulas contains wheat, corn, by-product meals, or artificial colors or flavors. The Instinct Raw...

Dogster_Instinct Dog Food Review

10 Best Dog Foods for Border Collies in 2025 – 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 Peanut Butter Crackers? Vet-Approved Facts

Dogs love food and they don’t seem to be too discerning when it comes to what they chow down on. Most owners have wondered at some point if their dog has eaten something that they shouldn’t have. So what is...

Can Dogs Eat Peanut Butter Crackers

Hungry Bark Dog Food Review 2025: Recalls, Pros & Cons

Please Note: As of February 2023 Hungry Bark is no longer producing dog food. However, we have some recommended alternatives for you to try here. Review Summary Pet owners are demanding better quality ingredients in their pets’ food. We want...

Dogster_Hungry Bark Dog Food Review

Primal Dog Food Review 2025: Recalls, Pros & Cons

Review Summary If you have been thinking about taking your first steps into the world of raw dog food, Primal pet Foods might just convince you to take the plunge. It’s known for its quality, healthy raw food formulas. Primal...

Dogster_Primal Dog Food Review

Can Dogs Eat Eel? Vet-Approved Feeding Facts

Many dogs love fish, whether a fishy food formula or home-prepared salmon or herring. However, when it comes to less conventional types of fish, like eel, it can be hard to know what’s safe and what isn’t. In brief, common...

Can Dogs Eat Eel

Can Dogs Eat Sage? Vet Approved Facts & FAQ

Sage is a commonly used herb in the kitchen that flavors foods and is also used in essential oils, creams, ointments, and medicines. If you cook with sage or have it growing abundantly in your garden, you may wonder if...

Can Dogs Eat Sage