Must have been placed improperly. They should not be installed in kitchens or in or near bathrooms.

But also, you should run the exhaust fan in the bathroom when you shower, this removes at least some of the moist air and cuts down on the chance for moisture damage and mold to develop.

It was in the hall right outside the shower, the exhaust fan didn't work very well so I left the door open. I live in a different place now and no longer have that issue.

But the point is that machines are not particularly good at detecting smoke lol

Smoke detectors detect microparticles in the air. They typically don't or can't differentiate between steam and smoke, at least not the cheap household type detectors.

> They should not be installed in kitchens or in or near bathrooms.

But then you can't catch vapers in the most popular vaping place: the bathroom. Oh no! Our revenue stream! It's broken!

I think, elephant in the room here, smoking is conspicuous and does real, tangible damage. Vaping? I'm not so sure.

Yeah vaping is lame but does it actually harm properties? I mean, if someone vapes 10 feet from me I can't smell it. And if I can smell it, it's gone in < 5 seconds. There's no smoke in it, it doesn't linger.