I don't know to what extent mosquitoes understand repellents anymore, one does the job and one doesn't... At least, it doesn't smell, it fits in many devices, and it lasts long enough. It is also natural...

Tested on Aroxol device, I have been using this specific product for 2 years now. I have also tested it in the village, at home, where there is high humidity and many, many hungry mosquitoes. It has a somewhat strong smell at first, but you get used to it afterwards. It did not cause any irritation or anything, even though I am allergic to many things. Additionally, it lasts for more than 30 nights, averaging 7-8 hours per day. I highly recommend it without hesitation!

The most useless thing I have bought, in a 4-square-meter enclosed space with closed doors and windows, the mosquitoes had a party with the "insect repellent"

At first, it smells strongly (especially if you are sensitive to smells), but after a while, you get used to it and don't notice it. I believe it works for specific types of mosquitoes, as I have seen mosquitoes pass by it several times while it's in operation.

It smells very strongly, it may be safe for children but it doesn't last. Effective otherwise.

I have not used it with any other device to determine if it is compatible, but for now, as long as it is plugged in, no mosquito has bitten me!

The instructions state that it is compatible with all commercially available mosquito repellent devices. (see https://www.powerhealth.gr/fleriana-plakidia-plug-in/ ) It was tested with Aroxol and Raid - Johnson devices and it does not work. Unfortunately, from what I searched, there does not seem to be a specific Power Health device for this product.