someone told me to fold a dryer sheet in the back neck of your coat...theres something in the sheets that repels mosquitoes. maybe try a dead down wind dryer sheet. dont know if it actually works...just heard a guy at our bow range talking about it. He said he does it when he goes fishing near the swamps. let me know if it does...not too many skeeters where i hunt, and I wear a facemask anyways.