It kills most flying insects inside the house. As for mosquitoes, it kills most of them as we do not see bites. It is used simultaneously with air conditioning, which helps significantly.

I didn't know that there are so many bugs inside the house.. not even my popcorn machine does that..
On the negative side, it has a lot of light that can be annoying at times and if you have it near a balcony door with a screen, a parade of bugs gathers outside that you can't open it afterwards..

I bought it mainly for mosquitoes. So far, it has been tested fully inside the house where mosquitoes constantly enter (outside is like a swamp). The total count of mosquitoes is ZERO. Also, for flies, it will be tested in an outdoor area from spring onwards. The only positive thing I have found is that it drives the mosquitoes out of their nest. I put it in my children's room for a couple of hours with the lights off. When I go afterwards, any mosquito that exists is on a wall or ceiling in a visible spot, so I kill it myself... It has NOT KILLED ANYTHING as a device.

I bought it for my grandmother as she has a large garden and the mosquitoes were having a party. She has placed it inside the house and has exterminated them all.

It cleans everything that crawls, mosquitoes, and all kinds of insects that are circulating. I am in an area with many insects around and it saved me! Very good.
Update about a month later:
Unfortunately, my device stopped working. However, it made a huge reduction in the insect population.

It HEATS up literally!
It leaves nothing standing, from wasps, cockroaches to flies and mosquitoes, but also any flying thing that tries to bother you. I have had it for 3 years in the village and every night it becomes a battle, with the little device they call it collects everything.
Advice: put it in a corner and low (not high like restaurants) and as you sit, it attracts anything that comes towards you. We were saved on vacation with this.