What is the difference between thermal lenses and regular lenses for paintball masks?

Okay, I will explain it in simple terms, then on a little more scientific level... thermals don't ';fog up'; on you like regular lenses do in extremities.





Here is why, while a regular lens is a single pane, a thermal is a double pane with a vacuum in the middle. If you remember high school physics, the rules about things like heat, amongst other things, change in a vacuum. The temperature on one side of the lens has no bearing on the temperature on the other (which will be closer to your body temp due to breathing and the simple release of body heat). With a single lens the moisture on one side or the other (the problem is typically the inside) will condense on the lens because of the temperature change.What is the difference between thermal lenses and regular lenses for paintball masks?
Okay, I will explain it in simple terms, then on a little more scientific level... thermals don't ';fog up'; on you like regular lenses do in extremities.





Here is why, while a regular lens is a single pane, a thermal is a double pane with a vacuum in the middle. If you remember high school physics, the rules about things like heat, amongst other things, change in a vacuum. The temperature on one side of the lens has no bearing on the temperature on the other (which will be closer to your body temp due to breathing and the simple release of body heat). With a single lens the moisture on one side or the other (the problem is typically the inside) will condense on the lens because of the temperature change.What is the difference between thermal lenses and regular lenses for paintball masks?
Thermal lens is designed to resist fogging. There's 2 types of thermal lenses.





Thermal Coating - a coating is baked on the lens. Works ok but can flake off over time.





Dual-pane - best kind (in my opinion), the lens has a thin sheet of plastic adhered to the inner side of the lens (side facing in on the mask), separated by foam near the edges.
regular lenses are just a single pane, thermals are dual panes which keep a air space in between the lenses to equal out the Temperature to reduce fogging. Buy thermals, you can get cheap ons at walmart fo 40 bucks
if you live in a southern state nothing not a dang thing