BAR NONE, the BEST product to fight gnats is Buggins. It will not work on skeeters, but it is great for gnats. I am not affiliated with the product at all, so I am not here to market it.

Working for years cutting grass on golf courses, you learn how to deal with those nasty critters. We would spray down every morning during gnat season, religiously. Ladies do not mind the smell either. They sell it locally around here, but made in MN I think. Here is a link

Buggins Natural DEET-free Insect Repellent

Can get it on Amazon.

It is far better than all the little home remedy stuff like Vanilla (which is in it), Absorbine Jr and the like. Get the demand and you will probably get a local vendor. Amazon is $8.88, but we can buy it local for about $6.

Gentlemen, you will be glad you bought it.