If we take into consideration the amount of germs that are passed back and forth at school, it is not a surprise that some teachers have considered diffusing essential oils in the classroom. For those with minimal education, this may seem like a great solution to keeping sickness at bay and to keep attendance up, but it comes with a significant amount of risk. Many are told that essential oils are completely natural and safe for everyone, but this is not always the case. There are many things that need to be considered when diffusing in a classroom full of children with a variety of different health constitutions. The liability in this type of situation needs to be looked at closely.

First things first, I know many teachers personally and have had the pleasure of having some wonderful teachers for my two boys over the years.  I can say without a doubt, that they hold your child’s well-being very close to their heart. They would not want to do anything to harm a child.

I hope to clear up the variety of possible issues of the practice of diffusing in the classroom so that parents, teachers, and faculty can understand the safety issues and the risks. I hope to assist them and you so that everyone can make informed decisions for the well being of our children.

Essential Oil Home Use

Essential oils are a beautiful complementary modality. They come from plants but even though they have the potential to assist the body in doing what it does best, they do not come without risk. The home user can utilize essential oils after a little bit of research. The “basics” of aromatherapy can be researched on the Internet. The more in depth topics, however, need more scientific, evidence-based research.

When looking on the Internet for research, many times the method of application and safety is not covered, so in cases of someone searching for information with limited knowledge of the topic, it can be a precarious situation. The recommendations given online come from a place of wanting to help others, but many times, they miss the mark.

Essential Oil Classroom Use-The Risks

One of the many reasons for more scientific research of essential oils is they do not come without risk, especially for children. A classroom has an average of 20 children. Some of which may be immune-compromised, taking numerous medications, have allergies, chemical sensitivities, respiratory issues such as asthma, an increased risk of seizures, autoimmune diseases and more.  A teacher could not possibly know how one seemingly innocuous essential oil could react among those 20 children. The reactions for just one child could change from day to day as well. Aromatherapists know when working with clients what works for one person may not work for another. It may be offensive or have the completely opposite reaction/effect.


There are numerous oils that should not be used with children who have asthma. Asthma and essential oils are very tricky. The triggers for one person are completely different to the next. Even seasoned aromatherapists recommend extreme caution when trying essential oils for clients with asthma. I myself, insist that an asthma sufferer have their inhaler handy when trying a particular oil or oil blend for the first time as well as the 3rd, 10th, and 50th time. Asthma can be a life-threatening situation, and many oils, as well as other aromas in the environment, can trigger it.

ADD, ADHD, Autism

Another health situation that needs great consideration is ADD, ADHD, and autism. A great example here is the essential oil of Lavender Lavandula angustifolia. It is a known phenomenon by aromatherapists that many with ADHD have a manic type reaction to lavender rather than what should be a sedating one. Here is an informative article that was written by my mentor, a vintage aromatherapist and educator Sylla Sheppard-Hanger of the Atlantic Institute of Aromatherapy that covers the topic in more detail.  

Chemical Sensitivities

Chemical sensitivities are becoming more and more common in society. The initial cause is not fully understood, but various chemicals in the environment can be a trigger it. Many chemical components in essential oils are also found in the environment. Let’s look at Limonene as an example. Limonene is found in many of the citrus essential oils and is also found in the environment in degreaser, Goo-Gone, wood finisher, and other items that can be found in the household. Many foods contain minimal amounts of essential oil constituents. Some may be surprised to know that cinnamaldehyde found in cinnamon and cassia oils (think popular anti-germ blends) is found not only in household cleaning products and candles, but is also in cinnamon bread, cereals, cookies, puddings, applesauce, and fruit juices in the supermarket (1).

Essential oil constituents cross over into common household products, home goods, and foods in many more instances than these. For those that have chemical sensitivities, the day to day can be very challenging. Some of the possible symptoms of chemical sensitivity are headaches, nausea, dizziness, rashes, respiratory difficulty (including asthmatic episodes), and cognitive dysfunction (2).  The more immune-compromised a person is, the more likely they are to have these sensitivities.

Unfortunately, there are many other chemicals in the classroom that can be an issue as well. Limiting exposure to the toxic chemicals of conventional household cleaning products can be done. Using essential oils for cleaning hard surfaces is a great idea, ONLY in the evening after the children have gone home for the day. Here is a great resource for you from the Aromatic Wisdom Institute, to help you to clean with essential oils safely. 


There are a few oils that are not recommended around children (or adults) that have a seizure disorder or a predisposition to them. Essential oils with high amounts of camphor are a known issue, those include but are not limited to: Ho leaf CT camphor, Spanish lavender, wormwood, sage, basil, spike lavender, rosemary CT camphor (camphor is not the only constituent that has the potential to precipitate a seizure). Various species of eucalyptus, although not common, has the potential to precipitate a seizure when used near the face of a child under 10 years of age (3).

These situations are rare but have happened in children, so it is important to understand the risk.


Now that I have covered a few of the various health issues that could make diffusing essential oils in the classroom risky, let’s briefly cover the liability of doing so. Parental consent for every child is a must. Those parents must be told which oils will be diffused, and what those risks are for certain children. (As you can see by what I covered above that is not going to be easy). Essentially, school boards must be the ones to come up with guidelines and policies for such a practice.

If parental consent is not obtained before classroom diffusing and something happens to a child, the liability is great for the teacher and the school district. Sadly, there are some instances, (speaking from experience) where the principal of a school may not even be aware of the practices of the teacher. In this particular instance, the teacher thought that she was doing something that would benefit the children. The school district already had a rule in place stating there are no diffusing essential oils in the room with children present so it was handled quickly.

Diffusing Times

Even though we now know that diffusing in the classroom is not the best practice for everyone’s safety, I want to briefly cover safe diffusing. Robert Tisserand states that 30-60 minutes of diffusion followed by a 60-minute break is best (4). (I typically recommend half this amount of time for a child). Extended diffusing can overwhelm the senses.

In order to explain possible reasons for this, let’s talk a little bit about our sense of smell, or our olfactory system. According to Dorene Petersen of ACHS, “Our sense of smell goes through five stages, those are: detect, transmit, perceive, analyze, and store. These stages cycle incredibly fast. The reception area of our olfactory system is called the olfactory epithelium. The olfactory epithelium is the size of a small postage stamp in each nostril, and is packed with an impressive 40 million sensory neurons, capable of detecting .0000000013 of an ounce of a scent in a single breath of air” (5). Our olfactory system is incredibly efficient, obtaining the therapeutic benefits of these amazing oils happens quickly. To receive maximum benefit and not waste your precious oils, follow the diffusing times recommended above.

Another important myth to dispel is that diffusing essential oils rids the air of the VOC’s present. This is not factual. The most effective methods in counteracting VOC’s in the home is a high-quality air filter, houseplants, and making sure you allow the fresh air in as much as possible.

A Possible Alternative

A personal inhaler is an option for a child to take to school (with permission). They can be helpful for a variety of reasons such as allergies, stuffy nose, or to help with anxiety or improve focus. The personal inhaler’s scent is limited to the user, meaning no other children become exposed to the scent or the vapor. As long as the parent is sure of the safety of their child and they understand they are not to share it, the risk is removed for the teacher, faculty, or the other children in the room.

In Conclusion

As you can see, essential oil use must be evaluated for each individual, circumstance, and environment. These are general guidelines that do not mean definitive results in all cases. This article was not written to instill fear, but to respect their uses and limitations.



(1) Cinnamaldehyde content in foods determined by gas chromatography-mass spectrometry

(2) Multiple Chemical Sensitivity. Retrieved from

(3) (4) Tisserand, R., Young, R. (2014) Essential Oil Safety (2nd Ed)

(5) Petersen, D. (2012) Aroma 101


Resources from above and more!

Extreme Chemical Sensitivity Makes Sufferers Allergic to Life

Green Cleaning with Essential Oils

Lavender: It’s not always calming

Personal Inhaler


Like so many practices in life I encourage you to become educated on the proper use of essential oils. When using them, please do so cautiously, understanding that there is often misinformation on the Internet. You can be assured that I support only educated and proven resources. While essential oils should not be feared they should be respected and used properly to ensure the safety of the individuals using them. Please note that I am not a medical practitioner. The content of the website is provided for general informational purposes only and is not intended as, nor should is be considered a substitute for, professional medical advice. Do not use the information on this website for diagnosing or treating any medical health condition. If you have, or suspect you have a medical problem, promptly contact your professional healthcare provider. By using this website, you assume full responsibility and liability for your own actions. 
































This site is protected by

Welcome social media fans! Subscribe here to receive the FREE eBook offer filled with rich information and plenty of aromatherapy blends to entice the senses.

Join our mailing list to receive the latest news and updates from Lifeholistically.

You have Successfully Subscribed!