Used high‑puff disposable vapes have more harmful chemicals (English, Level A1)

A new study looked at disposable vapes and fluids.
Many people use these vapes for many puffs.
After use, devices still have leftover liquid inside.
The leftover liquid had more harmful chemicals than fresh liquid.
Some of these chemicals can hurt the lungs and cells.
Researchers tested leftover liquid on human lung cells in labs.
They found cell damage after exposure to the liquid.
Experts advise caution with heavily used disposable vapes.
More research is needed to know the risks.

Difficult words

disposable — Made to be thrown away after one use.

fluid — Liquid that flows and is not solid.

fluids

leftover — Remaining small amount after something is used.

harmful — Can cause pain or damage to health.

researcher — Person who studies and tests things carefully.

Researchers

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Used high‑puff disposable vapes have more harmful chemicals^{CEFR A1}

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