What is IQOS? Everything You Need to Know About Heat-Not-Burn Technology (2025)

If you’re asking “What is IQOS?”, you’re not alone. IQOS is one of the most popular heat-not-burn tobacco devices, offering smokers a new way to consume tobacco without combustion. But how does IQOS work, and is it really different from vaping and traditional cigarettes?

How Does IQOS Work?

Unlike traditional cigarettes that burn tobacco, IQOS heats specially designed tobacco sticks (called HEETS or TEREA) to a controlled temperature. This creates a nicotine-containing vapor without combustion, smoke, or ash.

IQOS vs. Cigarettes

Benefits of Using IQOS

1. Less Harmful Chemicals

IQOS claims to produce up to 95% fewer harmful chemicals compared to cigarettes because it doesn’t burn tobacco.

2. No Smoke, Less Smell

Since IQOS heats tobacco, there’s no smoke or ash, and it leaves less odor on clothes and surroundings.

3. Closer to Smoking Experience

Unlike vaping, which uses e-liquid, IQOS gives a real tobacco taste — ideal for smokers who want a similar sensation without combustion.

Is IQOS Safer Than Smoking?

Although IQOS is likely less harmful than smoking, it still delivers nicotine, which is addictive. Long-term health effects are still being researched. It’s not risk-free but could be a reduced-risk alternative for adult smokers who don’t quit tobacco completely.

IQOS vs. Vaping: What’s the Difference?

• Vaping uses nicotine e-liquid, while IQOS uses real tobacco sticks.
• Vapes offer more flavors, IQOS focuses on authentic tobacco taste.
• Different technologies: Vapes use liquid; IQOS heats tobacco.

Conclusion: Should You Try IQOS?

If you’re looking for a smoke-free alternative to cigarettes, IQOS may be worth exploring. It offers real tobacco flavor without many of the downsides of smoking. However, if quitting nicotine altogether is your goal, there are better options.