Is smoking shisha harmful? Facts about CO, nicotine & risks

Entry from13.06.2026

Short & honest: Yes, Smoking shisha is harmful – it is not a harmless alternative to cigarettes. The smoke contains Carbon monoxide, nicotine, tar, fine dust, aldehydes and heavy metals. The Water only cools the smoke, it does not filter out the pollutants. The greatest acute risk is Carbon monoxide from coal – dangerous especially in poorly ventilated rooms. Anyone who smokes can reduce the risk (ventilate well, use their own mouthpiece, heat without charcoal), but the only way to completely eliminate it is to avoid smoking.

Is smoking shisha harmful – facts about carbon monoxide, nicotine and particulate matter at a glance — Is smoking shisha harmful? The most important facts at a glance – classified according to WHO, BfR and DKFZ.

“Is shisha actually harmful?” – you hear this question in almost every round. You often hear half-knowledge about this: “The water filters everything” or “It’s much more harmless than smoking”. In this guide we organize them Facts honestly – without scaremongering, but also without trivializing. You'll find out what's really in the smoke, how shisha compares to cigarettes and how you can realistically reduce the risk.

Is smoking shisha harmful? The honest answer

Yes. Waterpipe smoking is considered harmful to health by major health authorities. The World Health Organization (WHO), the German Cancer Research Center (DKFZ) and that Federal Institute for Risk Assessment (BfR) independently come to the same conclusion: shisha is not harmless and not a “healthier” option for smoking.

📌 The most important thing in one sentence: Shisha smoke contains the same group of substances as cigarette smoke - plus additional carbon monoxide from the coal - and the water does little to change that.

Nevertheless, a flat comparison “one shisha = X cigarettes” falls short. Amount consumed, type of tobacco, charcoal and ventilation make a big difference. Let's look at each of the factors.

What's in shisha smoke?

Where the harmful substances in shisha smoke come from: carbon monoxide from coal, nicotine and tar from tobacco, heavy metals — Where the pollutants come from: carbon monoxide from the burning coal, nicotine and tar from the heated tobacco, as well as aldehydes and heavy metals.

Even if it's just tobacco heated and not burned (more on this in the guide How does a shisha work?), numerous problematic substances are created. The most important are:

Carbon monoxide (CO): Mostly occurs when the coal burns - the main risk that is underestimated.
Nicotine: from tobacco, is addictive (amount depends on the variety).
Tar & fine dust: pollute the respiratory tract and indoor air.
Aldehydes (e.g. formaldehyde, acetaldehyde): formed when glycerin and flavors are heated.
Heavy metals (e.g. lead, nickel, arsenic, chromium): come from coal and tobacco.
Polycyclic aromatic hydrocarbons (PAHs): partly carcinogenic.

Shisha vs. cigarette – the honest comparison

A shisha session is completely different than a cigarette: it lasts longer, has many more puffs and often takes place indoors. That’s exactly what makes the difference – not “one move”.

Comparison of a one-hour shisha session with a cigarette: duration, puffs and inhaled smoke volume — A one-hour shisha session involves significantly more puffs and smoke volume than a single cigarette.

feature	Shisha (one session)	cigarette (one piece)
Length of time	45-60 minutes	about 5 minutes
Trains (inhalations)	approx. 90-120	approx. 8-12
Smoke volume inhaled	very high (according to WHO up to 100 cigarettes or more)	low
Carbon monoxide	high – especially from coal	available
nicotine	yes (depending on the type of tobacco)	Yes
Consumption setting	often indoors, in a group, sitting for long periods of time	usually short, often outside

💡 Important to classify: The oft-quoted WHO statement “one session ≈ 100 cigarettes” refers to this Smoke volume, not 1:1 on toxicity. But it shows: “just a shisha every now and then” still means a significant amount of smoke.

Carbon monoxide – the underestimated danger

Perhaps the most important shisha-specific risk is Carbon monoxide (CO) – a colorless and odorless gas that occurs when Burning of the coal arises. The BfR warns expressly Carbon monoxide poisoning from shisha smoking, especially in closed, poorly ventilated rooms.

Typical warning signs of CO poisoning are: Headache, dizziness, nausea, racing heart up to unconsciousness. Important: CO is created regardless of tobacco - So even with tobacco-free varieties, as long as you smoke with charcoal.

⚠️ If you feel dizzy or have a headache, get some fresh air immediately and quit smoking. Persistent symptoms are a medical emergency (112).

Is shisha addictive? The topic of nicotine

Yes. Hookah tobacco contains nicotine, the addictive substance. How strong depends on the variety: Virginia tobacco contains comparatively little, stronger Dark Blend significantly more. Anyone who smokes regularly can Nicotine addiction develop - just like with cigarettes.

Too much nicotine at once can cause... Nicotine shock occur (dizziness, nausea, racing heart). We explain more about this in Shisha lexicon.

Does the water filter pollutants? (The biggest myth)

The most persistent misconception is: “The water filters the smoke and makes it harmless.” That's not true. The water cools the smoke and binds a small part of the particles - but it does not retain most pollutants. Carbon monoxide It is practically impossible to filter through water.

🚿 Note: The water makes the smoke more pleasant, not healthier.

Is shisha harmless without tobacco or without nicotine?

Tobacco-free alternatives such as Steam stones or Steam paste are often sold as harmless - that is too optimistic. Two distinctions are important:

Tobacco-free ≠ nicotine-free: Some vape pastes still contain nicotine, others don't. Steam stones are mostly tobacco- and nicotine free.
Nicotine-free ≠ pollutant-free: If you smoke with charcoal, it still occurs Carbon monoxide. And when heating Glycerin form Aldehydes like formaldehyde.

So tobacco-free can do that nicotine reduce, but do not eliminate, all risks - especially not the CO from coal.

How can you reduce the risk of smoking shisha?

The only truly risk-free option is not to smoke. However, if you still smoke, you can noticeably reduce the risk:

Never in closed, poorly ventilated rooms Smoking – open the window, preferably outside.
Own Hygiene mouthpiece to use: You can wear hygiene mouthpieces around your neck and always have them with you - in bars or at friends' houses, you simply attach them to the front of the normal mouthpiece and are hygienic when you're on the move (protection against infection when smoking in a group).
Don't overdo sessions – Limit duration and frequency.
Annealed natural charcoal use and manage heat properly.
Smokebox with increased airflow: Some HMDs like that MAXX Hookah HMD Crown – Diamond Gold have raised air holes that direct air past the coals. This can limit the amount of carbon monoxide that is drawn through the glowing coal - but it is not a guarantee against CO.
Heating without coal: An electric heating head heats the tobacco without coal - with it no carbon monoxide is produced.

The last point in particular switches this off greatest acute risk (CO from coal) specifically. The electric one XKAH Pro heats the tobacco with a heating head instead of coal Original price was: 329,90€.Current price is: 299,00€.. Important & honest: Nicotine and aerosol remainif you continue to use tobacco. Carbon-free means “without carbon monoxide”, not “healthy”.

Smoke without carbon – without any carbon monoxide

The electric XKAH Pro heats the tobacco using a heating head instead of glowing coal - prices live and updated daily.

Carbon-free · e-HMD

XKAH Pro - Graphite Shisha Smokebox Watch now

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Battery pack

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You can find all colors & sets in XKAH-Pro brand shop. More about the principle in the guide Electric Shisha & XKAH.

Frequently asked questions: Is smoking shisha harmful?

Is smoking shisha harmful?

Yes. Smoking shisha is proven to be harmful and is not a harmless alternative to cigarettes. The smoke contains carbon monoxide, nicotine, tar, particulate matter, aldehydes and heavy metals. The World Health Organization (WHO), the German Cancer Research Center (DKFZ) and the Federal Institute for Risk Assessment (BfR) classify waterpipe smoking as harmful to health.

Is shisha more harmful than cigarettes?

You often consume significantly more smoke per session than with a single cigarette: a shisha session lasts 45-60 minutes with around 90-120 puffs, a cigarette only a few minutes with around 8-12 puffs. According to the WHO, the volume of smoke inhaled in a one-hour session can be equivalent to 100 cigarettes or more. However, a direct 1:1 comparison of toxicity is not serious - both are harmful.

Does the water in the shisha filter pollutants?

No, that's a myth. The water cools the smoke and binds some of the particles, but does not retain most of the pollutants. Carbon monoxide and many other toxic substances reach the lungs despite water.

Where does carbon monoxide come from when smoking shisha?

Carbon monoxide (CO) is mainly produced when coal burns, not from tobacco. This is why CO pollution is particularly dangerous in poorly ventilated rooms. The BfR warns of carbon monoxide poisoning from smoking shisha indoors.

Is smoking shisha addictive?

Yes. Hookah tobacco contains nicotine, which is addictive. How much depends on the variety: Virginia tobacco contains less, strong dark blend contains significantly more. Some tobacco-free varieties (e.g. certain vaping pastes) also contain nicotine.

Is shisha harmless without tobacco or without nicotine?

No. Tobacco-free or nicotine-free does not mean harmless. If you continue to smoke with coal, carbon monoxide is still produced, and when glycerin is heated, aldehydes such as formaldehyde are formed. Tobacco-free reduces nicotine but does not eliminate all risks.

How can I reduce the risk of smoking shisha?

It's only completely risk-free if you don't smoke. Anyone who smokes should: never smoke in closed, poorly ventilated rooms, ensure good ventilation, use their own mouthpiece, do not overdo sessions and pay attention to glowing natural charcoal. Electric heating without coal (e.g. XKAH Pro) switches off the source of carbon monoxide - but nicotine and aerosol remain with tobacco.

Sources & classification: This article summarizes the status of recognized health authorities:

World Health Organization (WHO) – Advisory Note “Waterpipe tobacco smoking: health effects, research needs and recommended actions”
Federal Institute for Risk Assessment (BfR) - Information on carbon monoxide poisoning from shisha smoking
German Cancer Research Center (DKFZ) – Fact sheet “Waterpipe (Shisha)”
Federal Center for Health Education (BZgA)

Note: This article is for general information and does not replace medical advice. Tobacco products are sold exclusively to people aged 18 and over. The healthiest choice is not to smoke.

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