They don’t work. I tried that first when I had a mold problem. Dehumidifiers are the only true way to get it under control.use Damp rid
Agree.Damp rid, crystals? If that, they don't kill anything. Plus you have to maintain them.
.....or you could pop up a floor grommet and run a small hose from the dehumidifier to under the car and outside.They sell small dehumidifiers. You just need to empty the water every once in a while.