Tabletop machines are one of the most commonly used mosquito repellant techniques in regular households. The heating machine is attached to a small bottle filled with the repellant liquid which when heated helps ward off mosquitoes. Stop spending on the expensive refills which are no good even if you keep them on all day. I was shocked to once see a mosquito sitting right on the bottle. I had to search for a better option. I have been using natural diffusers to get rid of mosquitoes at home. Applying oils or mosquito repellant creams seems too much work every day.