Vaping and Your Lungs: What We Know So Far

Vaping has become hugely popular in the United States, especially among young adults. It's often marketed as a safer alternative to cigarettes. But what does it actually mean for your lungs?

What's in the vapor

E-cigarette aerosol isn't just water vapor. It typically contains nicotine, flavoring chemicals, propylene glycol and vegetable glycerin, and can include small particles and trace metals from the device. Some flavoring chemicals are safe to eat but haven't been proven safe to inhale.

What research shows

Because e-cigarettes are relatively new, long-term data is still limited. Studies so far have linked vaping to airway irritation, coughing and wheezing in some users. In 2019, US health authorities investigated a serious lung injury outbreak (known as EVALI) that was strongly linked to vaping products containing THC and vitamin E acetate.

Is it safer than smoking?

For adults who already smoke, public health experts generally agree that completely switching to e-cigarettes likely exposes them to fewer harmful chemicals than cigarettes. But "less harmful" isn't the same as "harmless" — and for people who don't smoke, there's no health reason to start vaping.

Thinking about quitting?

• Set a quit date and tell friends or family.
• Talk to your doctor about nicotine replacement or other support.
• Call 1-800-QUIT-NOW for free coaching in the US.
• Try text or app-based quit programs designed for vaping.

Your lungs have a remarkable ability to recover once you stop inhaling irritants. Whatever you're quitting, it's worth doing.

These statements have not been evaluated by the FDA. BreathiZen® is a dietary supplement and is not intended to diagnose, treat, cure or prevent any disease. Please talk to your doctor before starting any supplement.