Originally Posted by frank31
I have had a 2oz jar open in my car door for a month. I don't notice it.
I did something similar at home and did not notice anything. I suspect the high exchange of air reduces its effectiveness. In the bilge or cabin, while away, is probably much more concentrated and effective (if its effective at all). Jury is still out here. I will be back to the boat in a few hours, after she sat for the past four days. We'll see.