The rise of vaping has led to a growing concern about the impact of vape liquids on respiratory health. In recent years, a mysterious lung injury called EVALI (e-cigarette or vaping product use-associated lung injury) has affected thousands of people worldwide, resulting in numerous hospitalizations and even deaths. As the vaping industry continues to evolve, it’s essential to understand the connection between vape liquids and respiratory health.

The Ingredients in Vape Liquids

Vape liquids, also known as e-liquids or e-juices, typically contain a combination of ingredients, including:

  • Propylene glycol (PG)
  • Vegetable glycerin (VG)
  • Flavorings
  • Nicotine (optional)

While these ingredients are generally considered safe for consumption, their effects on respiratory health when inhaled are not yet fully understood.

The Risks of Vape Liquids

Several studies have linked vape liquids to respiratory health issues, including:

  • Lung Injury: The outbreak of EVALI in 2019 highlighted the potential for vape liquids to cause severe lung damage, leading to symptoms like shortness of breath, chest pain, and coughing.
  • Asthma and COPD: Some studies suggest that vaping can exacerbate existing respiratory conditions like asthma and chronic obstructive pulmonary disease (COPD).
  • Respiratory Inflammation: Vape liquids can contain irritants like formaldehyde and acrolein, which can cause inflammation in the lungs and airways.
  • Nicotine Dependence: Vape liquids often contain nicotine, which is highly addictive and can lead to dependence.

The Role of Flavorings and Additives

Flavorings and additives in vape liquids have also raised concerns about respiratory health. Some flavorings, like diacetyl, have been linked to popcorn lung, a condition that causes scarring in the lungs. Other additives, like vitamin E acetate, have been identified as a potential cause of EVALI.

What You Can Do

To minimize the risks associated with vape liquids and respiratory health:

  • Choose Reputable Brands: Opt for well-known brands that disclose their ingredients and adhere to quality control measures.
  • Avoid Unregulated Products: Steer clear of unregulated or counterfeit vape liquids, which may contain harmful ingredients.
  • Monitor Your Health: If you experience any respiratory symptoms, seek medical attention immediately.
  • Consider Alternatives: If you’re using vaping as a means to quit smoking, consider alternative methods like nicotine replacement therapy or counseling.


The connection between vape liquids and respiratory health is complex and still being researched. While the full extent of the risks is not yet clear, it’s essential to be aware of the potential dangers and take steps to minimize them. By choosing reputable products, monitoring your health, and considering alternatives, you can reduce your risk of respiratory health issues associated with vape liquids. Central Vapors