Why scholars say vaping breaks the fast

The scholarly position on vaping during the fast is consistent across the major schools and well-grounded in classical Islamic jurisprudence. Here is the breakdown.

The basic rule of fasting

Fasting in Ramadan (sawm) requires complete abstinence from anything entering the body cavity (al-jawf) through a recognised passage (mouth or nose) during fasting hours from Fajr (dawn) to Maghrib (sunset). The Arabic term for the act of consumption that breaks the fast is iftar in its general sense (or for smoking specifically, syurbud dukhan: drinking smoke). The legal framework asks one main question: did a substance with perceptible mass enter al-jawf deliberately?

Why vapour qualifies

Vapour from an e-cigarette has perceptible mass. You can see it leave the mouth, you can smell its flavour and you can feel it on your throat. This is qualitatively different from passive scent (perfume, cooking smells) which scholars do not consider a fast-breaker because the substance is too fine to settle in al-jawf. Vape vapour fills the mouth and throat visibly. The Arabic legal term for inhaled vapour parallels the term for smoke, and the same ruling follows: deliberate inhalation breaks the fast.

The Dubai Grand Mufti ruling

In a published response by Emarat Al Youm, Sheikh Dr. Ahmed Abdulaziz Al Haddad (Grand Mufti and Director of the Fatwa Department at Dubai's Islamic Affairs and Charitable Activities Department) addressed the question directly. He stated that electronic cigarettes invalidate the fast because the vapour enters the body through inhalation, similar to conventional cigarette smoke, and therefore falls under the same ruling as smoking. This represents the official position of one of the most prominent Sunni fatwa institutions and is widely followed across the UAE, the wider Gulf and many UK Islamic communities.

Nicotine-free vapes

The ruling applies to nicotine-free vapes too. The legal question is whether vapour with perceptible mass enters al-jawf. The answer is yes regardless of whether the e-liquid contains nicotine. 0 mg e-liquid still contains propylene glycol, vegetable glycerine and flavourings, all of which are substances entering the body cavity through inhalation. The same applies to herbal or CBD vapes. Switching to 0 mg during Ramadan addresses the nicotine craving angle but does not solve the religious question.

Asthma inhalers (the exception)

Asthma inhalers are treated differently and most scholars permit them during the fast. The reasoning is twofold. First, the active substance in an inhaler is dispersed in such a fine mist that it does not settle in al-jawf in a perceptible quantity (unlike vape vapour). Second, the principle of medical necessity (darura) overrides the general rule when medication is required to maintain health. Vapers cannot extend the inhaler permission to their devices because the volume and density of vape vapour is qualitatively different and there is no medical necessity. The asthma exception confirms rather than contradicts the vaping ruling.

Vaping between iftar and suhoor

Vaping is permitted between iftar (the meal that breaks the fast at sunset) and suhoor (the pre-dawn meal before the fast resumes at Fajr). Once the fast is broken at Maghrib, the day's restrictions are lifted until dawn the following day. Vaping during this window does not invalidate the next day's fast as long as you stop before Fajr. Practical advice: vape moderately in the iftar-to-suhoor window because heavy vaping leaves you dehydrated or nauseated at the start of the next fast.

Unintentional vaping

The principle of niyyah (intention) is central to Islamic jurisprudence. If you genuinely forgot you were fasting and took a puff out of habit, most scholars hold the fast remains valid provided you stop immediately upon realisation. Deliberate vaping with full awareness invalidates the fast and requires qada (making up the day later). Repeated forgetfulness raises the bar of expected discipline, so do not rely on this allowance more than necessary.

Practical UK Ramadan plan

UK Muslim vapers preparing for Ramadan can take three practical steps. Reduce nicotine strength in the weeks before Ramadan so withdrawal during fasting hours is less severe. Plan vape use in the iftar-to-suhoor window with moderation to avoid dehydration. Use Ramadan as a natural quit window if appropriate. Many Muslims find the daily forced abstinence breaks the habit-loop. After Ramadan, decide whether to continue at the lower nicotine strength or stop entirely.

For the related question on prayer and ritual purity our piece on whether vaping breaks wudu covers a different ruling (it does not). For an aerosol-free option that may have different scholarly considerations, our nicotine pouch range covers options that some scholars treat differently from inhaled vapour.

For more on Islamic and travel rulings about vaping head over to our full vaping guides hub where every Ramadan, prayer and travel question is covered.