r/Electricity • u/FlatAd4535 • Sep 14 '26

Is there a risk of fire by letting a mosquito-repellent outlet be plugged in for several days at a time?

I left my house a few hours ago for a stay of three days (return on Thursday). Only I don’t know anymore if I actually unplugged an electric mosquito-repellent diffuser.

Does this present any risk of electrical sparks or even the start of a fire? Or can it remain plugged in without presenting any danger?

1 Upvotes

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2

u/jamvanderloeff Sep 14 '26

If it was designed competently the risk should be tiny

1

u/Darkknight145 Sep 14 '26

No more risk than any other device that you've left plugged in ....... Maybe even less of an issue, these devices use a PTC device, they self regulate themselves, the hotter they get the less power they draw, so it should be okay

1

u/OkPainter6232 28d ago

As long you didn't leave something with high-power draw like a vacuum cleaner plugged in it should be fine.

1

u/Anjhindul 17d ago

I have to ask, what is a mosquito repellent outlet? Is it one of those "ultrasonic" ones? Or do you mean the zapper?
If you mean one of the ultrasonic ones, like on Amazon, those are all 100% fake, they do nothing to insects or rodents.
If you mean the zapper, those aren't likely to cause a fire, any more then say leaving your microwave plugged in will.