The FlextailGear Max Repel Portable Mosquito Repeller is an amazing piece of gear.
I put it's mosquito repellent capabilities to the test. After travelling to the mosquito infested area of the Wimmera River. I was pleasantly surprised at just how effecting the Max Repel actually is. We accidentally left it turned on in the car with the windows down, and thought nothing of it until I turned it off.
Within 10 seconds or so, mosquitoes were streaming in through the car windows. I also used it in an area amongst low bushes close to stagnant water and didn't get a single mosquito bite.