Hookah and Shisha Tobacco (Waterpipe Smoking, Carbon Monoxide Poisoning, Polycyclic Aromatic Hydrocarbons, Shared Mouthpiece Infection) — household safety profile
High riskHookah (waterpipe, narghile, shisha) smoking involves heating flavored, molasses-moistened tobacco (shisha or maassel) with charcoal briquettes and drawing the smoke through water before inhalation.
What is this product?
Hookah (waterpipe, narghile, shisha) smoking involves heating flavored, molasses-moistened tobacco (shisha or maassel) with charcoal briquettes and drawing the smoke through water before inhalation. The combination of charcoal combustion and prolonged session duration (45-90 minutes, 100-200 puffs) produces extreme exposures to carbon monoxide and polycyclic aromatic hydrocarbons that dramatically exceed single-cigarette equivalents. A single hookah session delivers 100-200 liters of smoke (versus 0.5 liters per cigarette), 1.7x the nicotine, 6.5x the carbon monoxide, and 46x the tar of a single cigarette according to WHO estimates. Charcoal combustion — not the tobacco — is the primary source of carbon monoxide (CO) and benzo[a]pyrene (BaP, IARC Group 1 carcinogen): CO exposure from hookah sessions routinely produces carboxyhemoglobin levels of 10-20% (versus 3-8% from cigarette smoking), causing headaches, dizziness, syncope, and documented cases of acute CO poisoning requiring emergency care. The widespread misconception that water filtration removes toxicants is false — water reduces particulate temperature but removes <5% of carbon monoxide, <5% of PAHs, and negligible heavy metals from hookah smoke. Shared mouthpieces in social hookah settings transmit respiratory infections including tuberculosis, herpes simplex, and Helicobacter pylori.
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