Do you have problems with your paintball mask fogging up? Some times thermal anti fog lenses are just not enough. This paintball goggle fan is the solution for you. The Haber Eliminator Goggle fan is unique as far as goggle fans go in that it has a humidity sensor which turns the fan on as needed to keep your vision crystal clear. It is smaller and lighter than the JT Vortex 2 Goggle Fan, using just one AAA battery. Check it out. We have a great video of it up explaining how it is installed.