Getting rid of boat smells with a solar fan

I had diesel leak a few months back and even though I had it fixed, the boat smelt like diesel. West marine were having a sale on their nicro vents, down $85 from $185 so I bought a couple of them to replace the ones I bought through amazon and which lasted only a couple of months.

I installed the new ones and the smell dissapeared overnight. Here is a new one installed.

I am hoping that these new ones are a bit more robust than the last ones I bought and they ae supposed to have a 2 year warranty.