I broke down and bought one a couple of years ago after about being carried out of the tree by the mosquitoes. Early season bowhunting suddenly wasn't fun anymore because of the bugs. I was willing to try anything. It was like night and day after the Thermacell. I sat in the same stand I had a few days before where they were constantly on me and saw about a 90% reduction. I'm a believer. Deer never seemed to smell it although it does put off a little odor. Give it a try. How bad wrong can you go for $25 bucks?