Essential oil vapes

Inhaling the vapor of essential oils (also known as "essential oil e-cigarettes") is not a safe alternative; instead, it may pose serious and poorly understood respiratory health risks.

According to authoritative health organizations such as the American Lung Association, heating essential oils and inhaling them directly into the lungs is a dangerous and unrecommended practice.

What is an essential oil e-cigarette?
An essential oil e-cigarette, also known as a scented e-cigarette pen or personal diffuser, is essentially a battery-powered device similar to a regular e-cigarette. It heats a mixture of essential oils, water, and plant glycerin to produce inhalable aerosol or vapor. The main difference from regular e-cigarettes is that it uses essential oils instead of nicotine.

Main health risks
The risks of essential oil e-cigarettes mainly stem from their ingredients and the heating process.

Direct irritation and inflammation: Essential oils are highly concentrated plant extracts. Direct inhalation can strongly irritate the respiratory tract, potentially causing symptoms such as coughing, nasal and throat irritation, asthma or shortness of breath. The vapor itself can also trigger lung inflammation and irritation.

High temperature generates harmful substances: When essential oils are heated (especially above 150-180°C), their chemical components undergo changes. This process generates volatile organic compounds (VOCs), some of which are known respiratory irritants.

Causing severe lung diseases: Inhaling oily substances may cause lipid pneumonia, a severe inflammation caused by the accumulation of oils in the lungs. Additionally, some products may contain chemicals (such as diacetyl) associated with severe irreversible lung damage (known as "popcorn lung").

Unknown long-term risks: As this is a relatively new practice, experts are not yet certain of its long-term effects, but it is known to potentially cause serious respiratory system diseases such as chronic bronchitis, exacerbated asthma, and frequent lung infections.

Regulation and Misconceptions
Lack of regulation and false advertising: In many regions, including the United States, essential oil products are not strictly regulated, making it impossible to ensure their ingredient safety. The US Food and Drug Administration (FDA) has warned companies selling essential oil-containing e-cigarettes that claim health benefits, stating that these claims are unproven and the products themselves may be harmful. Currently, no e-cigarette product has been approved by the FDA for the prevention or treatment of any health issues.

Not a "safer" option: Although some manufacturers use marketing language such as "safer" and "healthier," scientific evidence does not support these claims. A 2022 study showed that participants who inhaled essential oils for one hour per day had elevated heart rate and blood pressure and decreased lung function.

Summary
Essential oil e-cigarettes are highly similar in principle to regular e-cigarettes, with only the fillings being different. It is not a safe inhalation method, especially for those with respiratory diseases. The potential risks include direct respiratory irritation, harmful compounds produced by high temperatures, and the possibility of causing serious lung diseases.