Yes, they can. But, some are more sensitive than others.

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We’ve all been tempted to vape indoors, and most of us do at home. Since all buildings should be fitted with one, you might be wondering “can vaping set off smoke alarms?”. The short answer is yes. But, there are different types of smoke detectors and some are a lot more sensitive to vapour than others.
Smoke Alarms and Vapour
There are three main kinds of smoke detector and they all react to vapour in slightly different ways, let’s take a look at how and where you can find them.
Optical Smoke Alarms

Optical smoke alarms are most often found in homes are what most people think of when picturing one.
The way they work is by producing a beam of light that detects smoke breaking this line.
This type of smoke alarm is the most sensitive to vapour, as it can’t tell the difference between smoke and vapour.
Heat Alarms

Heat alarms are most often found in kitchens and older houses. They look very similar to optical alarms, but have a telltale cone like structure in the middle.
Since they detect extreme heat, they are the least likely to activate because of vapour. But, that’s not saying they can’t. If the sensor is sensitive enough, and you stand directly beneath it, then it could go off.
Ionisation Detectors

Ionisation detectors radiate the air around a plate. If this area is interrupted by a dense substance, such as smoke, then it will go off.
Just like heat detectors, these are less likely to be activate from vapour. Just don’t stand directly underneath them and you should be fine.
You can spot this kind of alarm in public buildings and offices.
Can You Vape On A Plane?
While certainly against the rules, technically you can, and some people even do. But, we recommend against it. Smoke detectors on planes are extremely sensitive, for good reason. If the alarm goes off, it could result in rerouting and making an emergency landing, which can result in fines or even arrest. If you’re on a longer haul flight then consider a different type of nicotine replacement, such as sprays, gum or lozenges.
Can You Vape In A Hotel Room?
Well it depends on the hotel. Some hotels, mainly chain ones, have strict no smoking or vaping policies. Others don’t actually specify a no vaping rule, but it’s always worth asking and following the wishes of the accommodation. If you do manage to set off a fire alarm then you could end up evacuating the building and wasting the valuable time of emergency services. You can also receive a costly fine for this as the hotel will assume you’re smoking.
Crafty Vaping Methods
Some vapers will go above and beyond to vape where they shouldn’t. Nicotine dependence is an addiction after all. Let us examine some of the more creative methods that vapers have used to evade detection.
Holding it in
This does in fact work. If you hold the vapour in your lungs for a moment before exhaling, it actually reduces the amount of vapour your breathe out.
Covering a smoke alarm with a plastic bag
Please don’t do this for the sake of a vape, just go outside! Fire alarms and smoke detectors are there to save lives. If you damage the detector by trying to cover them up, it could cost lives.
Using a low powered & small kit
Again this is another sure-fire way to reduce the size of your vape cloud. Using smaller kits like pod devices with a higher ohm coil will make less vapour.
Again, we strongly suggest that you always respect the vaping policy of any establishment, rather than try evading it for the sake of having a vape.
And there we have it, hopefully I’ve answered the question “Can Vaping Set Off Smoke Alarms?”. If you have any questions about kits, like which are the best kits for producing the least amount of vapour, then feel free to contact us.