All players must wear a mask approved for paintball and/or airsoft while on the playing field. A player's mask must remain in place between games. Lifting your mask away from your face, or removing the mask from your head is not allowed. The mask rule is one of the most important paintball rules.
This is why players use C-Clear anti-fog spray or gel to keep their masks from fogging up while playing paintball or airsoft.
TIP: At the start of the day, check your mask and make sure it is dry throughout. Especially, on heavy rain days the day before, followed by cleaning can leave your mask wet and easily fogged up.
Next, generously spray or spread C-Clear liquid or gel on the inside of your mask or goggles. Smear with your fingers into edges. Be sure to cover the entire lens. You can lightly buff the gel with a dry, clean microfiber cloth or clean t-shirt.
Be sure to do the same steps, if you wear eyeglasses under your paintball mask.
If you apply C-Clear to the outside of the lenses it will make it easier to rinse off the paint. Do this before you happen to "eat paint".