Get

In Your Inbox

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

Is a Humidifier Safe for My Cat? (Potential Risks & Crucial Safety Tips)

Catster_is a humidifier Safe for Cats TEMPLATE_v1_Feb 28 2025

For certain households, using a humidifier is a necessity during the winter months. But maybe you have a new cat or are thinking about purchasing your first humidifier and are not sure if it will be safe with your cat.

A cool mist humidifier is perfectly safe for use around cats and is even capable of providing a few benefits for them. But there are a few things that you’ll need to consider before using one.

Before you use your old humidifier or buy a new one, you should understand the benefits and the risks of using it around your cat.

divider cats oct 2024

What Exactly Are Humidifiers?

Humidity is the water vapor in the air. Humidifiers are particularly popular during the winter months because the air in people’s homes is quite dry due to the lack of humidity in the cold air and in heating systems.1

Humidifiers work by filtering the dry air and sending it back out as a mist. There are several humidifiers to choose from:

  • Central humidifiers: Just like central air-conditioning, central humidifiers are built into the home’s air-conditioning and heating systems and will humidify the entire house.
  • Impeller humidifiers: These humidifiers make a cool mist using a rotating disk.
  • Ultrasonic humidifiers: These make a cool mist by using ultrasonic vibrations.
  • Evaporators: Evaporators use a fan that blows air through a wet filter, belt, or wick.
  • Steam vaporizers: They use electricity to make steam that cools off before leaving the device. You should avoid this one around your cat, young children, and other pets.
humidifier
Image by: Anke Sundermeier, Pixabay

Why Use a Humidifier?

Other than preventing those annoying shocks that you get after walking across a carpet, humidifiers help with many other aggravating aspects of dry winter air, like dry sinuses, cracked and dry lips, bloody noses, dry skin, headaches, dry and frizzy hair, etc.

They can also come in handy if you have a cold or a respiratory condition, such as asthma.

Do Humidifiers Benefit Cats?

For the most part, cats can benefit from humidifiers in the same way that they help us. Cats can catch a “cat cold” and suffer from congestion, which can be relieved with a humidifier.

It can also help your cat if they have chronic rhinitis or sinusitis. Rhinitis is inflammation of the nose, and sinusitis is inflammation in the nasal passages. A humidifier can help loosen the mucus inside the nose, enabling the cat to breathe easier.

When a cat has asthma, dry air can trigger asthma attacks, and a humidifier can increase the moisture in the air.

Finally, humidifiers help us with our dry skin and can do the same for cats. If your cat seems to have dandruff and does a fair amount of scratching, it might be because the air is drying out their skin. But first, be sure that it isn’t due to a different health condition.

If your pet is scratching too much or has dandruff, we suggest you speak to a vet.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an 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 for PangoVet2 save money
cat Dehumidifier
Image by: Mariia Boiko, Shutterstock

What Are the Risks of Humidifiers Around Cats?

You should only use a cool mist humidifier, not a warm mist humidifier. The biggest issue with the latter is that it uses boiling water, which can be a hazard if your curious cat accidentally knocks it over. Additionally, warm mist humidifiers are much more likely to be subject to mold and mildew.

But both types require a reservoir of water to work, which can be a hazard if it spills near an electrical outlet. If you have an overly inquisitive and energetic cat that is likely to knock over the humidifier, there could be the possibility of an electrical shock.

divider cats oct 2024

The 8 Safety Tips for Using Humidifiers Around Cats

Now that you know that humidifiers are safe for the most part, here are a few safety tips to ensure that you can use them without worrying about your cat.

1. Use Cool Mist Humidifiers Only

You should only use cool mist humidifiers if you have a cat. The same can be said if you have any pets or young children. This way, there’s no risk of burns if it gets knocked over.


2. Use Sturdy Humidifiers Only

You’ll want to use a humidifier that can’t easily fall. A curious cat might accidentally tip over a lightweight machine. If your cat won’t be able to leave it alone, consider getting a small humidifier so if it does topple, it won’t hurt your cat.

cat sitting near humidifier
Image by; Pixel-Shot, Shutterstock

3. Don’t Use Essential Oils

Essential oils are highly toxic to cats. They are easily absorbed through the skin and orally into the body, where then they are processed by the liver, but cats lack the enzyme to process the essential oils, which can lead to liver failure.

Droplets from a diffuser or humidifier can land on the cat’s fur, which they will lick off, or they can inhale them in the air. Never use essential oils around your cat.


4. Use Quiet Humidifiers Only

Cats have extraordinarily sensitive hearing and tend to spook easily when there are unexpected sounds. A noisy humidifier could keep the cat away. This is fine if your cat doesn’t need the humidifier, but if they do, don’t put it near areas that your cat must frequent, such as their food bowls, litter box, and sleeping areas.


5. Keep It Clean

You will need to change the water frequently and clean the reservoir. It’s recommended to change the water every day if possible. If the unit has filters, change or clean them at the same time.

Demineralized or distilled water will have fewer particles and mineral deposits left behind, and these can lead to bacterial growth. Strictly adhere to the manufacturer’s instructions. Remember, whatever is in the reservoir will end up in the air that you and your family will be breathing.

man pouring water into humidifier
Image by; Lena Ogurtsova, Shutterstock

6. Consider Measuring the Humidity

There is such a thing as too much humidity in the air, and it can cause excess condensation in your home, which could produce mold and mildew and promote the growth of bacteria. This can lead to allergies, asthma attacks, and respiratory problems.

You can invest in a hygrometer that measures the moisture in the air so you can make any adjustments.


7. Know That Placement Is Key

If the humidifier is for your cat, you’ll need to find a safe place to put it so your cat won’t constantly be knocking it over.

You also should be careful to place it far enough away from the electrical outlet, so it won’t spill water on the outlet if it does get tipped over. If it’s only for you, simply put it out of reach of your cat.


8. Watch Your Cat

When you first plug in the humidifier, watch your cat around it for a while. Do not leave them alone until your cat is accustomed to it and shows no more interest in it.

persian cat lying on couch
Image by: Another77, Shutterstock

A Word on Ultrasonic Humidifiers

This humidifier uses ultrasonic vibrations that vibrate and generate droplets of moisture that are dispensed into the air. Since they vibrate at a very high frequency, they produce no sound, but cats can still sense them.

Some cats will likely be okay with this type of humidifier, while others won’t, so you’ll want to test it around your cat. If it bothers them, try returning it for a refund.

divider cats oct 2024

Conclusion

Humidifiers are safe for your cat, provided that it is a cool mist unit that is sturdy and can’t easily be knocked over. It can do wonders for your cat’s skin and coat, help with their respiratory issues, and benefit you and your family too.

Speak to a vet if you are considering a humidifier because your cat is exhibiting dry skin or respiratory problems. Humidifiers can help relieve a few of these issues, but they might still need medical intervention.

Overall, aim for a cool mist humidifier that is quiet and strong enough to handle an energetic cat.


Featured Image Credit: Marina Demeshko, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* 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 Catster 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

5 Different Cat Personality Types: Understand Your Feline (Vet Reviewed)

Cats are mysterious, enigmatic creatures that do what they want to do on their own terms. It’s hard for us to imagine putting...

Can Cats Eat Pig Ears? Vet-Approved Facts & FAQ

Cats are carnivores and require diets rich in protein from animal sources to thrive. Although pork is fine for cats to eat, and...

Introducing the Catsters: Dr. Lauren and Pancake & Tiller the Adventurers

Hi! My name is Lauren, and I’m a residency-trained feline veterinarian with a passion for cats, teaching, and adventure. When I’m not otherwise...

10 Amazing DIY Cardboard Cat Trees You Can Create at Home (With Pictures)

Cat ownership is an expensive venture, especially considering that most non-food items aren’t designed to last forever. Cat toys will get lost or...

More related

10 Best Clay Cat Litters in 2025 – Reviews & Top Picks

Cats are generally happiest when they have pleasant environments that meet their needs and wishes. They can be picky about what they eat...

F1 vs. F2 Savannah Cat: How Are They Different? (With Pictures)

Savannah cats are tall, slim domestic cats that have a wild-cat temperament. It is a hybrid, meaning it’s a cross between a domestic...

Can Cats Eat Raw Beef? Vet-Verified Nutritional Facts & FAQ

For pet owners, feeding their fur babies an appropriate and healthy diet is not only a responsibility but also a great way to...

250 Cartoon Cat Names: Ideas for Charismatic & Comical Kitties

Cats have lived alongside humans for thousands of years and have always been a subject of interest to artists and creatives. From ancient...

Keep reading

Can Cats Be Gay, Bisexual, or Lesbian? Vet Reviewed Feline Sexuality Facts

Some of the behaviors our pets exhibit mimic our own, but many of their quirks seem strange. It’s difficult to interpret a feline’s behavior when you relate their actions to those of humans. One of the most common questions people...

two gay cats

My Cat’s Spay Incision Slightly Opened: Should I Worry? Vet-Verified Facts & FAQ

Spaying is a common practice for many pets. While complications are rare, it’s still important for cat owners to know how to respond to them in case something goes wrong. One of the most common complications is slight opening of...

sphynx cat after surgery

Turkish Van Cat Health Problems: 8 Vet-Reviewed Issues

The Turkish Van cat breed is relatively healthy. These beautiful yet rare cats are still susceptible to many of the same health issues that cats of any other breed are, though. Today we’re going to provide information about some of...

Catster_Health Problems of Turkish Van

Why Do Cats Hate Dogs? Vet-Reviewed Facts & Tips

It’s a tale as old as time, depicted in innumerable movies, cartoons, and television shows: cats hissing at dogs, dogs chasing cats, both engaging in a skirmish that results in a ball of smoke from which violent sounds emanate and...

tabby cat and a puppy on the carpet at home

Can Cats Eat Rhubarb? Vet-Reviewed Risks & Alternatives

Summer is just around the corner. Do you dream of your garden overflowing with rhubarb plants with the intention of creating tasty desserts and jams this summer? There’s not much not to like about this tasty perennial vegetable, but if...

Can Cats Eat Rhubarb

Can Cats Catch the Flu From a Person? Vet Approved Facts & FAQ

If you live in a cat-filled home, you know that there are lots of things both of you share. But can you share illness? It’s widely known that cats and people can pass certain things back and forth, like certain...

woman with allergy holding cat

Why Do Cats Sometimes Eat Their Placenta? Vet Approved Facts & FAQ

Cats evolved to eat their placenta. It is normal behavior that most females will exhibit while giving birth. But that does not mean that all cats will eat every placenta. Both behaviors are normal and nothing to be worried about....

mother cat giving birth to a child

Can Cats Drink Wine? Vet-Verified Safety Information

Many cat lovers appreciate a nice glass of wine in the evening to help them relax. Not only is it a crisp and refreshing drink, but it can also cut the edge after a stressful day and allow you to...

Can Cats Drink Wine