IQOS is a heat-not-burn tobacco device that heats specially designed tobacco sticks instead of burning them. The device warms tobacco to around 350°C, producing a nicotine-containing aerosol without smoke or ash. This technology aims to reduce exposure to harmful chemicals created by traditional cigarette combustion.
What Is IQOS?
IQOS is a heated tobacco system designed for adult smokers who want an alternative to traditional cigarettes.
Instead of burning tobacco, IQOS heats real tobacco sticks called HEETS or TEREA to release nicotine and flavor.
The device was developed by Philip Morris International and introduced as part of the company’s smoke-free product line.
A regular cigarette burns tobacco at extremely high temperatures. IQOS works differently by controlling heat carefully.
Because the tobacco does not burn, the device produces a tobacco aerosol rather than smoke.
How IQOS Works
IQOS uses heat-not-burn technology, which means the tobacco is heated but never reaches combustion.
Here is the basic process:
- Insert a HEETS or TEREA tobacco stick into the holder.
- The heating element warms the tobacco to around 350°C.
- The heated tobacco releases a nicotine aerosol.
- The user inhales the aerosol instead of smoke.
Unlike cigarettes, this process produces:
- No ash
- Less lingering smell
- No burning tobacco
Tip: Most sessions last around 14 puffs or about 6 minutes, similar to smoking a cigarette.
Key Components Of The IQOS System
In my experience with heated tobacco devices, IQOS feels more like a small tech gadget than a traditional smoking tool.
Most systems include four main parts:
1. Holder
The pen-shaped device that heats the tobacco stick.
2. Pocket Charger
A portable charger that powers the holder between uses.
3. Tobacco Sticks
Short sticks called HEETS or TEREA designed specifically for heating.
4. Cleaning Tools
Older models require cleaning to remove residue from the heating blade.
Note: Newer IQOS ILUMA models use induction heating, meaning no blade and almost no cleaning needed.
IQOS vs Cigarettes vs Vape Devices
Many people confuse IQOS with vaping, but the technologies are different.
| Feature | Traditional Cigarette | IQOS (Heat-Not-Burn) | Vape / E-Cigarette |
|---|---|---|---|
| Material | Loose tobacco | Tobacco sticks | E-liquid |
| Process | Combustion | Controlled heating | Vaporization |
| Output | Smoke & ash | Tobacco aerosol | Vapor |
| Smell | Strong | Mild | Sweet / flavored |
| Nicotine | From tobacco | From tobacco | Synthetic or extracted |
Remember: IQOS uses real tobacco, while vape devices use liquid nicotine.
IQOS vs Regular Vaping
From a user perspective, the experience feels different.
Vaping produces a smooth vapor because it uses liquid.
IQOS produces a dry aerosol since it heats real tobacco leaves.
Many smokers prefer IQOS because:
- The taste feels closer to cigarettes
- The puff ritual feels familiar
- The smell disappears faster
However, vape devices offer more flavour options and customization.
Safety And Responsibility
Caution: IQOS is not risk-free.
The device still delivers nicotine, which is addictive.
According to public health research, the biggest harm from cigarettes comes from burning tobacco, which creates thousands of toxic chemicals.
Heat-not-burn devices aim to reduce exposure to those combustion-related chemicals, but they still involve tobacco and nicotine.
Important Notes
- Intended for adult smokers only
- Not recommended for non-smokers
- Not suitable during pregnancy
- Not a medical smoking-cessation product
Common Questions About IQOS
Is IQOS safer than cigarettes?
IQOS heats tobacco instead of burning it, which may reduce exposure to some harmful chemicals. However, it still contains nicotine and is not risk-free.
Does IQOS produce smoke?
No. IQOS produces a tobacco aerosol, not smoke, because the tobacco is heated rather than burned.
Is IQOS the same as vaping?
No. Vaping uses e-liquid, while IQOS heats real tobacco sticks.
Does IQOS smell like cigarettes?
The smell is usually milder and fades faster, but a tobacco note remains.
Key Takeaways
• IQOS heats tobacco instead of burning it
• It uses special tobacco sticks (HEETS or TEREA)
• The device heats tobacco to about 350°C
• It produces aerosol, not smoke
• IQOS still delivers addictive nicotine
Final Result
IQOS sits between traditional smoking and vaping technology.
For adult smokers who would otherwise continue smoking, it may feel like a closer alternative to cigarettes because it uses real tobacco.
However, the safest option for health remains quitting tobacco and nicotine entirely.
References
- Research from U.S. Food and Drug Administration on heated tobacco products
- Evidence reviews from Public Health England