I won't go hunting early season without mine. After about 15 minutes, you won't have any problems with flies or mosquitos. It does have a slight butane smell to it but if you are in a stand, it is high enough that the deer won't smell it. Just remember to lay it flat or you will melt the plastic housing. I put mine on my climber's base against the tree. I think I will rig up something with velcro.