Short answer: Yes, it is possible – but it’s not a guarantee. Whether a fire alarm is activated depends on the type of detector, the amount of vapour, and the proximity of the device to the sensor.
How Fire Alarms Detect Threats
Fire alarms generally fall into two main categories based on their detection technology:
| Detector Type | What It Detects | Sensitivity to Vapour |
|---|---|---|
| Ionisation | Small smoke particles from fast-flaming fires | Low – vapour particles are often too large to trigger the ionisation chamber reliably. |
| Photoelectric (optical) | Larger smoke particles from smouldering fires | High – the dense aerosol from a vape can scatter the light beam inside the sensor and set off the alarm. |
Many modern buildings use photoelectric or dual-sensor alarms, which are particularly sensitive to the particulate matter in exhaled vapour.

Why Alibarbar Vapes Might Trigger an Alarm
Alibarbar devices, like most disposable vapes, produce a visible, dense aerosol when exhaled. This vapour is composed primarily of:

Propylene glycol (PG)
Vegetable glycerin (VG)
Flavourings
Nicotine (optional)
When exhaled in a large, concentrated cloud, this aerosol can mimic the light-scattering effect of smoke inside a photoelectric chamber, leading to a false alarm.
Factors that increase the risk:
Enclosed spaces – A small room with limited ventilation traps vapour near the ceiling, where alarms are usually mounted.
Multiple users – Group vaping in one area multiplies the particulate load.
Direct exhalation toward the detector – Even a single large puff can be enough if aimed at the alarm.
High-VG liquids – Alibarbar e-liquids typically use a high VG ratio for smoother vapour, which creates thicker clouds that are more likely to interfere with sensors.
How to Minimise the Risk
If you are in a space with automatic fire detection (hotels, dormitories, offices, aircraft, etc.):
Vape near an open window and exhale directly outside.
Use a lower-powered device – Alibarbar disposables like the INGOT series are optimised for performance, but taking smaller, less cloudy pulls can help.
Avoid vaping directly under or near an alarm – Most domestic and commercial sensors are mounted on ceilings or high walls.
Do not try to cover or tamper with a smoke detector – this is illegal and creates a genuine safety hazard.
Use a personal air filter or “smoke buddy” if you need to vape discreetly indoors.
A Note from ALIBARBAR VAPE Australia Store
At ALIBARBAR VAPE Australia Store, we design our products for enjoyable, reliable use – but we always recommend vaping responsibly and in accordance with local regulations and building policies. If you’re unsure whether vaping is permitted in a particular space, the safest approach is to step outside or use a designated vaping area.
Fire safety is not a trivial matter. Even though vapour is harmless in the context of fire risks, the disruption caused by a false alarm can be significant – and in some jurisdictions, it can even lead to fines.
Need a device that’s ideal for outdoor use? Check out our range of high-capacity, pocket-friendly disposables like the ALIBARBAR INGOT 9000 – perfect for long days away from power outlets.

