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Keep your car smelling fresh with this easy, natural DIY car air freshener using the essential oils of your choice.

Natural DIY Car Air Freshener

Last Modified: January 9, 2018 // by Tracy Ariza, DDS // July 8, 2017 I may receive a commission if you purchase through links in this post. Learn more here.

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Keep your car smelling fresh with this easy, natural DIY car air freshener using the essential oils of your choice.

Keep your car smelling fresh with this easy, natural DIY car air freshener using the essential oils of your choice.

Keep your car smelling fresh with this easy, natural DIY car air freshener using the essential oils of your choice.
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While I enjoy having a car that smells fresh and clean, I can’t stomach the smell of most artificial fragrances. I’ve always had issues with people wearing too much perfume and then coming too close, or being in the car with someone who uses way too much fabric softener on their clothes. (I, myself, prefer to use a few drops of essential oil in either my homemade laundry soap or on my wool dryer balls, or both!)

Many artificial fragrances either make me nauseous or make it harder for me to breathe (I have a history of asthma). So, even before knowing that artificial fragrances could be potentially harmful, I’ve never been one to have one of those cardboard pine trees hanging from my car’s rear view window.

Watch how to use the natural DIY car air freshener

The dangers of artificial fragrances

One of the main reasons that I started making a lot of my own natural products was to avoid the artificial fragrances used in most products. Unfortunately, the ingredients in fragrances don’t need to be disclosed, despite the fact that it is becoming more apparent that many of the commonly used ingredients can be detrimental to our health.

The ingredients in some artificial fragrances may be carcinogenic, endocrine disruptors (meaning that they can affect your hormones), allergenic, and they could pose other potential problems to your health. I know that some definitely trigger respiratory issues for me, and I worry about how the artificial fragrances in cosmetics will affect my husband and son’s sensitive skin. (My son has atopic dermatitis, so I’ve switched to fragrance free almost everything around the house.)

Often, I’ll find a product with ingredients that don’t look too bad to me, but then there’s the “fragrance” enigma in the ingredient label that has me wondering if I should buy the product or not. I have also noticed when looking up products in the EWG Skin Deep® cosmetic database that some cosmetics would have an otherwise reasonably safe rating if it weren’t for the fragrances they use. Not being sure about the safety of most artificial fragrances, I tend to stick to either using only essential oils or using no fragrance at all when making my own products.

I know that the topic of synthetic versus natural chemicals can be a heated debate. There are times, like with iron oxide pigments, that I prefer an iron oxide that has been synthesized in a lab over a naturally found one that may be contaminated with unsafe levels of heavy metals. So, no I don’t think all synthesized products are “bad” and that all natural products are “good,” but that’s a whole other topic for another day. In the case of artificial fragrances, I don’t know enough about each type of artificial fragrance to be able to make an educated choice about which ones to use. So, I choose to do what I think works best for my family, using a mixture of fragrance free and naturally fragrant ingredients when possible, and try to share my findings with all of you. I think by now you probably know that I tend to prefer the more natural options for everything I make, but my main motivation when choosing ingredients is to always choose what I think is the most safe.

Keep your car smelling fresh with this easy, natural DIY car air freshener using the essential oils of your choice.

Types of essential oil car air fresheners

I’ve been using tiny glass bottles with wooden caps that can be hung on the rear view mirror for several months now. The tiny glass jars come in both plain glass and decorated varieties (I have both types), and look cute when hung from your mirror.

To get the air freshener to give off more fragrance, you tip the bottle over. Because the cap is made out of wood, it absorbs the essential oil and alcohol mixture which then evaporates into the air giving your car a nice fresh scent.

Stainless steel “lockets” for your car

I have since seen another type of essential oil car air freshener. These vent clip air fresheners use a felt circle within a stainless steel “locket.” You add a few drops of the essential oil of your choice to the felt, and when you use your air vent, it helps disperse the fragrance in your car. While I haven’t personally tried these (yet), they have really good reviews, and look pretty nice. I may have to order some soon. If you’ve tried them already, I’d love to hear how they work for you!


How long does the fragrance last?

It’s really hard to give a good estimate of how long a bottle of the air freshener lasts. It depends a lot on how strong you want the fragrance and how often you tip the bottle over to wet the wooden cap. It probably also depends on the temperature outside, the ratio of alcohol to essential oils that you use, and the type of alcohol you use. This is one of those cases in which I tend to use more inexpensive essential oils, and often buy large bottles of citrus essential oils or lavender, so they are cheaper per ounce, to use for this type of application. (I also add the same oils to my washing machine and wool dryer balls.)

For me, I’d say that the bottle lasts me a couple of weeks normally. I also have a 6 year old son who likes to tip the bottle over and have the scent be stronger. Even if you don’t tip the bottle over, the oil/alcohol mixture is constantly evaporating, so you’ll have a subtle fragrance in the car even when you do nothing.

From what I’ve read online, the locket vent type essential oil car air fresheners last a couple of days with a couple of drops of essential oil.

Natural DIY Car Air Freshener

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Keep your car smelling fresh with this easy, natural DIY car air freshener using the essential oils of your choice.

Natural DIY Car Air Freshener

Keep your car smelling fresh with this easy, natural DIY car air freshener using the essential oils of your choice.
4.78 from 9 votes
Print Rate
Prep time: 10 minutes
Total time: 10 minutes
Servings: 1 air freshener
Author: Tracy Ariza, DDS

Materials

  • 5 ml alcohol denatured alcohol, vodka, etc.
  • 5 ml essential oil of choice

Instructions

  • Open the air freshener bottle and remove the small plastic stopper underneath the cap if your model includes one.
  • Pour the alcohol into the bottle. I’ve found using a small funnel helps. The alcohol should fill around half of the bottle. Since most air freshener bottles are 12ml, 5 ml is a good estimate. I started using a perfumer’s alcohol (basically a denatured alcohol without much scent of its own), but that was rather expensive. I was afraid to use a denatured alcohol because I thought that its own scent would be overpowering, but in practice I haven’t found it to be a problem. It works just as well. I’ve even tried vodka, which has also worked well and may even last a bit longer due to its lower alcohol content (meaning slower evaporation).
  • Fill the rest of the bottle with an essential oil of your choice. The instructions with the bottles I bought suggested using a 50%/50% mix, but lately I’ve been using a little more alcohol and a little less essential oil. I haven’t found too much of a difference between how strong the scent is or how long it lasts between doing the different concentrations, so it may end up being a bit less expensive that way.
  • Put the wooden cap on the bottle without the plastic stopper. Tip the bottle over to wet the cap with the alcohol and essential oil mixture.
    Keep your car smelling fresh with this easy, natural DIY car air freshener using the essential oils of your choice.
  • Hang the bottle from the rear view mirror of your car. Adjust the length of the cord in a way that keeps the bottle from hitting your windshield in case of going over bumps. Any time you need to add a bit more fragrance to your car, just tip the bottle over for long enough to wet the wooden cap again. You can use the plastic stopper under the cap to keep the liquid from evaporating when not in use.
Tried making this? Tag me today!Mention @thethingswellmake or tag #thethingswellmake!
Category: Home & Garden, Make it Yourself

About Tracy Ariza, DDS

Tracy Ariza, B.A., D.D.S., left dentistry and the United States to found Oh, The Things We’ll Make!, writing to you from the Spanish Riviera. She loves making things herself in order to keep control of what goes in them. While far from perfect, she strives each day to live a healthier, more sustainable lifestyle.

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Reader Interactions

Comments

  1. Yannah

    December 3, 2019 at 1:36 PM

    Hi there,
    I’ve made these and just wondering why the essential oil sits above the vodka, even after it’s been shaken to mix through? Am I doing something wrong…

    Reply
    • Tracy Ariza, DDS

      February 6, 2021 at 8:10 PM

      Hi Yannah,
      No, the problem is that vodka isn’t strong enough to solubilize the oils. Ideally, if you wanted it all incorporated, you’d mix the oils with a very strong alcohol, and then once incorporated, you could dilute the mixture.
      In any case, I’ve never had issues using it this way. I still am able to smell the fragrance as the vodka evaporates.

      Reply
  2. soheil

    November 12, 2019 at 10:10 PM

    dear
    great moments.
    please send me quotation for 10,000 pcs for your different shapes of car freshener.

    thank you,.

    Reply
    • Tracy Ariza

      November 13, 2019 at 3:23 PM

      Hello Soheil,
      I’m afraid I don’t sell any products. I only show people how to make their own.

      Reply
    • Michelle

      July 17, 2020 at 10:19 PM

      Hello I currently make my own ones and distribute to suppliers
      If you are interested!

      Reply
      • Sharon

        September 2, 2020 at 10:00 PM

        I might be interested could you get back to me please

        Reply
        • Tracy Ariza, DDS

          February 8, 2021 at 12:37 PM

          For privacy reasons, I removed your email address, but I have both on file, so, perhaps, Michelle can let me know if it’s OK for me to give you her email address so you two can contact each other.

          Reply
  3. Mayurica Chauhan

    March 20, 2019 at 2:11 PM

    Hi Tracy,

    What if I don’t want to use alcohol & make car freshners out of base oil mixed with a fragrance or essential oil. If this is possible?

    Reply
    • Tracy Ariza

      March 20, 2019 at 7:07 PM

      Hi Mayurica,
      You can definitely try it out. It may not give off as much fragrance because we are using the alcohol to both help preserve the mixture and disperse it into the air. (The quicker evaporation of the alcohol helps spread the fragrance into the air.)
      In any case, if you’re only using oils, you won’t need to preserve. I’m just not sure how easily the fragrance will be spread.
      I’d be curious to hear how it goes if you do try it!

      Reply
  4. Erin C.

    November 5, 2018 at 8:38 PM

    What kind of essential oils did you use preferably?

    Reply
    • Tracy Ariza

      November 5, 2018 at 10:55 PM

      Hi Erin,
      I’ve used lavender, orange oil, and lemon oil. sometimes I combine them. I actually quite like the combination of lavender with citrus scents.
      I stick with more inexpensive essential oils for something like this. Luckily, those oils also smell wonderful! šŸ˜‰

      Reply
  5. Denis

    September 2, 2018 at 4:10 AM

    hi Tracy Ariza, i just want to ask you about denatured alcohol, did it safe to use it. because when i try to buy at walmart its say flamable and danger. and if i just pour the essential oil without mix its ok?, and can i use regular alcohol?. thanks

    Reply
    • Tracy Ariza

      September 2, 2018 at 4:21 PM

      Hi Denis,
      Use whatever alcohol you prefer (including any drinkable alcohol like vodka)! You’ll want to add some sort of alcohol as a carrier that evaporates and helps give off the scent of the essential oils. I’m not sure this would work without using some sort of alcohol. You could try with a carrier oil, but it definitely wouldn’t give off as much of a scent without some sort of carrier that evaporates relatively quickly.
      I used denatured alcohol, which is really just a strong alcohol like rubbing alcohol or isopropyl alcohol. I think denatured alcohol is a broader term and rubbing alcohol is basically a type of denatured alcohol. The one I bought here in Spain was basically like a rubbing alcohol, but they called it denatured alcohol so I used that terminology. Some denatured alcohols may be used as more of a solvent, which might be the type you saw at the store. I would think it would still work the same way. Of course, any alcohol is going to be flammable, so caution should be used around fire with any of them.

      Reply
      • Denis

        September 3, 2018 at 3:20 AM

        thanks, GBU

        Reply
        • Tracy Ariza

          September 3, 2018 at 4:36 PM

          You’re very welcome! šŸ™‚

          Reply
      • Rich

        December 25, 2019 at 2:28 AM

        Where dod you get the caps from that can hold the string?

        Reply
        • Tracy Ariza

          December 27, 2019 at 11:31 AM

          Hi Rich, I ordered the full bottles over the internet. I linked to some that can be bought through Amazon.

          Reply
      • Kaitlyn Stover

        September 2, 2020 at 4:02 AM

        Is the wood cap like a Cork or straight wood cap?

        Reply
        • Tracy Ariza, DDS

          September 16, 2020 at 10:17 PM

          Hi Kaitlin,
          The ones I bought had a normal wood cap. It looked like a softer pine, perhaps.

          Reply
  6. adva

    August 24, 2018 at 10:41 AM

    hi i tried it and the mixture leaked in the car do you have a soulotion?

    Reply
    • Tracy Ariza

      August 26, 2018 at 9:27 AM

      Hi Adva,
      Where, exactly, is it leaking?
      I haven’t had any issues with mine.
      The glass part should be on the bottom, and the level of liquid shouldn’t be reaching the level of the lid, so I’m not really sure how you are getting leaking unless it is falling upside down, or the level of liquid is too high.

      Reply
  7. Angel from The Bay

    July 30, 2018 at 6:49 PM

    Pretty cool idea. I’m looking to make a car freshener.

    Reply
    • Tracy Ariza

      July 30, 2018 at 10:35 PM

      Great! I hope it goes well for you!

      Reply
  8. Gail Gradidge

    May 8, 2018 at 10:37 PM

    Thank you so much for sharing your knowledge with us. If I have had a bad day, is it safe to drink the vodka based air freshner??

    Reply
    • Tracy Ariza

      May 9, 2018 at 6:14 PM

      Hi Gail,
      Well, if you think it may come to that, I might suggest lowering the amount of essential oils used so as not to OD on them. I’ve been known to use certain oils for flavoring, though, and imagine that an orange or lemon based vodka air freshener might not be so bad. šŸ˜‰

      Reply
  9. ludivine

    April 16, 2018 at 8:11 PM

    Hello,

    Thank you for this DIY.
    Can you tell me what type of denatured alcohol do you use (96 ° or 90,50) ?
    Thank you very much

    Reply
    • Tracy Ariza

      April 17, 2018 at 9:23 AM

      Hi Ludivine,
      It doesn’t really matter. I’ve used 96Āŗ alcohol before, but I also tried using just vodka (at around 40%) to see if it would keep longer (not evaporate away as quickly). Either way worked fine, actually, and I can’t even really say that I noticed a huge change either way. I sometimes mix a little vodka with some denatured alcohol just because. šŸ˜‰

      Reply
  10. Terry Windsor

    July 9, 2017 at 7:18 PM

    Wow, that sounds great!! I am going to try it. Where did you get your bottles from?
    Thanks ,

    Terry

    Reply
    • Tracy Ariza

      July 9, 2017 at 11:49 PM

      Hi Terry,
      I bought mine online through Amazon. I bought them from a different seller than the one linked to because we have different offerings here in Spain, but they appear to be the same type bottles and the same size.
      I hope you like it! šŸ™‚

      Reply
      • Isobel O'Neill

        January 22, 2018 at 7:03 PM

        Hi Tracy,

        I can’t seem to find the link to the bottles on this page?
        Searching amazon all I’m finding is cork lid bottles!

        Thanks
        Isobel

        Reply
        • Tracy Ariza

          January 23, 2018 at 3:52 PM

          Hi Isobel,
          Sorry about that!
          I found these bottles on Amazon. There is an amazon widget in the middle of the post with a picture of them that links to that and a few other things, but now that I look, I see it could be more prominent. I’ll try to add a better link for others who are having the same issue! Thanks for alerting me to the issue!

          Reply
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Hello, I’m Tracy!

I love making my own natural products like soaps and lotions and my own pantry items like yogurt and salad dressings.
Why do I do it? Sometimes to save money, sometimes because it's healthier, but I always love having control of the ingredients!​
Oh, the things we'll make!...

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