Are candles bad for dogs? The worst candles for dogs are scented candles that contain essential oils known to be harmful to dogs. The concern about any candles and dogs is that candles can emit chemicals that can harm your dog’s lungs. Dogs have smaller lungs than we do, so something deemed safe for us may not be safe for a dog. And, of course, smaller dogs will be affected more quickly than large dogs.
If you notice these signs, put the candle out, open windows, and take your dog outside to recover. If the signs do not start to go away, get to the veterinarian.
Remember, too, that a dog’s sense of smell is at least 10,000 times more sensitive than ours, with some estimates at 100,000 times more sensitive. So, if you’re aware of the smell from a burning candle, your dog is much more likely to notice it and to be bothered by it. On a list of indoor pollutants from the Cleveland Clinic, scented candles ranks 17th.
Are you a candle lover with furry friends at home? I’ve been wondering about this too – especially after my neighbor’s dog had a coughing fit during our last dinner party where I had several scented candles burning. The truth is, our four-legged companions experience the world primarily through their noses, and what might be a pleasant aroma to us could potentially be harmful to them.
Dogs have an extraordinary sense of smell that’s approximately 10,000 times more powerful than ours. With up to 300 million olfactory receptors compared to our measly 6 million, they’re incredibly sensitive to scents in the air. This raises important questions for pet parents who enjoy filling their homes with fragrant candles.
Let’s dive into what you need to know about burning scented candles around your furry friends.
The Truth About Scented Candles and Dogs
Many scented candles contain poisonous substances that are also used as pesticides or plastic softeners. Some of these chemicals can cause breathing problems for dogs. And others can build up in the body (of both dogs and humans) over time increasing cancer risk.
That’s pretty scary, right? But before you throw out your entire candle collection, let’s explore this topic more deeply.
Are All Candles Dangerous for Dogs?
The good news is that, in most cases, scented candles are actually safe for dogs when used properly. The safety concerns typically fall into two categories:
- Scent exposure – Is the fragrance harmful to your dog’s sensitive nose and respiratory system?
- Ingestion risk – What happens if your dog decides to nibble on or eat a candle?
Let’s break down both concerns.
Candle Ingredients Matter
The type and quality of candles you use make a significant difference. Here’s what to watch for:
Wax Type
- Paraffin wax – This petroleum-based wax produces harsher chemicals when burned and should be avoided when possible.
- Natural waxes – Soy, coconut, and beeswax are generally safer options as they produce fewer toxins when burned.
If your dog accidentally ingests candle wax, the good news is that most candle waxes (soy, paraffin, coconut, and beeswax) aren’t toxic to dogs. However, a large chunk might cause digestive discomfort.
Wicks
Look for candles with unbleached cotton wicks. Metal-cored wicks (which are less common now) can release lead into the air when burned.
Fragrance Oils
This is where things get tricky. Some essential oils and synthetic fragrances can be harmful to dogs, especially in high concentrations.
Essential Oils and Scents to Avoid Around Dogs
According to experts, several essential oils aren’t ideal to use around dogs. These include:
- Cinnamon
- Citrus (d-limonene)
- Pennyroyal
- Peppermint
- Pine
- Sweet birch
- Tea tree (melaleuca)
- Wintergreen
- Ylang ylang
- Anise
- Clove
- Thyme
- Juniper
- Yarrow
- Garlic
It’s worth noting that the concentration of these oils in scented candles is usually low enough not to cause immediate harm. However, if you have particularly sensitive pets or those with respiratory issues, it’s best to avoid these scents altogether.
Dog-Friendly Candle Scents
On a brighter note, some candle scents can actually benefit your pup! Candles made with these essential oils may have aromatherapy benefits for dogs:
- Bergamot
- Frankincense
- Myrrh
- Lavender
- Ginger
- Chamomile
- Rosemary
- Eucalyptus
I’ve personally found that my dog seems more relaxed when I burn lavender-scented candles – though I’m careful to ensure good ventilation.
Health Risks of Scented Candles for Dogs
Respiratory Issues
The smoke and certain chemicals released from burning candles can irritate your dog’s respiratory system, potentially leading to:
- Coughing
- Sneezing
- Watery eyes
- Breathing difficulties
- Worsening of existing conditions like asthma or bronchitis
Dogs with sensitive airways – like those with collapsing trachea, “kennel cough,” allergic bronchitis, and brachycephalic (flat-faced) breeds – are particularly vulnerable.
Chemical Exposure
Some scented candles contain volatile organic compounds (VOCs) that can cause:
- Eye, nose, and throat irritation
- Headaches and nausea (in both humans and pets)
- Potential damage to liver, kidney, and central nervous system
- Increased cancer risk with long-term exposure
Physical Hazards
Beyond the scent itself, candles pose other risks:
- Burn injuries from curious paws or noses
- Fire hazards if knocked over
- Potential obstruction or choking if your dog eats candle wax, wicks, or metal parts
What If My Dog Eats a Candle?
If your dog decides your favorite vanilla-scented candle looks like a tasty treat, don’t panic! In most cases, candle wax isn’t immediately dangerous.
Most common candle waxes will soften and pass through your dog’s digestive system. Soy-based candles are particularly soft and pose the least risk.
However, you should watch for these symptoms of distress:
- Excessive panting
- Labored breathing
- Abnormal lethargy
- Cries of distress
- Vomiting
- Diarrhea
If your dog doesn’t have a bowel movement for two days, or if there’s bloody or watery stool that persists for more than a day, call your vet.
The bigger concern is if your dog swallowed the wick or metal parts, which could potentially become lodged in their digestive tract. In this case, an emergency vet visit is recommended.
Tips for Safely Enjoying Candles Around Dogs
You don’t have to completely give up your candle collection if you have dogs. Here are some practical tips to minimize risks:
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Choose high-quality, natural candles – Look for candles made in the US using natural soy wax, beeswax, or other vegetable-based waxes with unbleached cotton wicks.
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Provide good ventilation – Ensure rooms where candles are burning have adequate airflow.
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Monitor your dog’s reaction – If your dog seems uncomfortable, is coughing, or tries to leave the room when candles are lit, that’s a clear sign the scent is bothering them.
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Never leave burning candles unattended – Always extinguish candles when you leave the room.
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Use a candle snuffer – This minimizes smoke production compared to blowing candles out.
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Consider alternatives – Flameless candles, air purifiers, or pet-safe room fresheners can provide pleasant scents without risks.
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Store candles safely – Keep unlit candles in drawers, closets, or cabinets where curious pups can’t reach them.
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Trim wicks regularly – This helps maintain a clean-burning flame with less smoke.
Safer Alternatives to Scented Candles
If you’re concerned about using scented candles around your pets, consider these alternatives:
Flameless Candles
Battery-operated LED candles give the same cozy ambiance without smoke or flame risks.
Candle Warmers
These devices warm jar candles without requiring a flame, eliminating smoke while still releasing fragrance.
Pet-Safe Air Fresheners
Look for products specifically labeled as pet-safe, such as:
- One Fur All non-toxic pet-safe air freshener spray
- Pet Odor Exterminator candles (which can be used with warming plates)
- Bac-Out Stain & Odor Remover for fabrics
DIY Natural Fresheners
Create your own pet-friendly scents by:
- Simmering cinnamon sticks, cloves, vanilla, or mint tea in water (avoid citrus if you have cats)
- Using bamboo charcoal bags to absorb odors
- Making DIY air fresheners with pet-safe ingredients
Air Purifiers
While they don’t add scent, air purifiers help remove odors and particles that could irritate your pet’s lungs.
My Personal Experience
I’ve been a candle enthusiast for years, but when I adopted my golden retriever Max, I became more cautious. I noticed he would sneeze whenever I burned certain candles, particularly those with cinnamon or pine scents.
After doing research and talking with my vet, I switched to soy candles with dog-friendly scents like lavender and chamomile. I also invested in a good air purifier and make sure to only burn candles in well-ventilated rooms.
Now Max seems much more comfortable, and I can still enjoy my candle collection without worrying about his health. Win-win!
Final Thoughts
So, are scented candles bad for dogs? The answer isn’t black and white. While some candles and scents can potentially harm your furry friend, many are perfectly safe when used responsibly.
By choosing high-quality candles with natural ingredients, avoiding harmful scents, ensuring good ventilation, and practicing general candle safety, you can create a pleasant-smelling home that’s also safe for your beloved pet.
Remember, every dog is different – some may be more sensitive than others. Always observe your pet’s behavior when introducing new scents, and consult your veterinarian if you notice any concerning symptoms.
Do you have experience with scented candles and pets? I’d love to hear your thoughts and tips in the comments below!
Would you like me to explain or break down any part of this article further?
Safe Candles for Dogs
Studies say paraffin, an inexpensive candle wax, emits toxic chemicals when burning, although there’s question as to how much is harmful. Paraffin is derived from petroleum, oil, or coal shale. “Burning candles can expose you to potentially hazardous chemicals, such as formaldehyde, acetaldehyde, and acrolein. Though these chemicals can be dangerous, studies conclude that exposure to these chemicals when burning candles is too low to present a direct health hazard,” according to the University of Florida Health. But, this study was about humans, not dogs.
A USDA report from South Carolina supports the use of soybean wax candles instead, which their data show burn cleaner.
Harmful Essential Oils for Dogs
Candles are often scented with essential oils, although candle packaging doesn’t always confirm what was used to make the candle. Some essential oils shouldn’t be used around dogs, including:
And, of course, the smell and ingestion of marijuana can harm your dog as well, just in case you’re burning that.
If your dog is in the room with a lit scented candle, keep an eye on him. The wrong scent or an overpowering scent could put him at risk for serious illness, including aspiration pneumonia. Learn how to use scents properly.
Signs of toxicity include:
These essential oils are usually OK for use around dogs:
What candles are toxic to dogs?
FAQ
What candle scents are toxic to dogs?
Some oils, like tea tree oil, peppermint oil, and eucalyptus oil, can cause serious health issues in dogs such as vomiting, diarrhoea, and even liver failure if ingested. Burning candles or using diffusers can also release fumes that can be harmful to a dog’s respiratory system if they are inhaled in large quantities.
Can dogs be in a room with scented candles?
Candles can add to the ambiance and fragrance of your home. But many scented candles contain toxic chemicals that can harm dogs. Fragrances can cause an allergic reaction or irritate existing respiratory problems in dogs. To keep your dog safe, choose unscented candles made of soy, beeswax, or vegetable wax.
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