Thermocell on the deck.....Outstanding.....
Thermocell you carry with you into the woods I am a bit disappointed. Not about how it keeps Gnats and Mosquitoes away but how you have to use it...It's for the hunter or fisherperson in a stationary position. In other words if your hunting chucks, dove, ducks, deer, it's OK. However for the hunters on the move...You can not attach it to your belt as you walk along and pick shrooms or hunt grouse, etc. The label warns you if you do not place the Thermocell Horizontal that it could wreck the unit. So there is good and bad in any product... Thermocell works but it's not for when you move from A to B location. Directions even tell you not to turn it on until you get to your stand and make sure the vent is facing up...Horizontal not Vertical...
However I did find an outstanding alternative for the outdoorperson that has to move: It's called:
OFF Clip On It operates by battery and the repellant works up to 10 days in the unit. I tried it while hunting chucks the other day. Stuff works outstanding.. Kept the bugs away when walking from one chuck stand to the other and then while on stand too. Check it out...Everyone has it..Saw that Home Depot has it on sale this week to: $6.90 instead of the current Wal-Mart price of about $8.50.