Prevent lens fog in cold and humid environments. Compatibility: HERO4 Black, HERO4 Silver, HERO3+, HERO3, HD HERO2, Original HD HERO
Drop these Anti-Fog Inserts into the sides of your GoPro camera housing to prevent fogging in cold and humid environments. Inserts will last up to four uses. To dry out and reuse, heat inserts on a pan in oven at 300° F for five minutes. Store in an airtight bag.