Diving Mask,Panoramic Anti-fog Dry Breathing Scuba Diving Snorkeling Set/Dive Set/Dry Snorkel Set/Tempered Glass Mask/Diving Equipment with Wide View and Easybreath for Men/Women Most advanced Defoggers in the Market: Solid-State Defoggers adopt USA advanced nanotechnology. All the effective fog-free gel is condensed in a special sponge. Mixed it with water and shake, most powerful Anti-fog is born! Convenient Carry: with compact size and solid state feature, it can be carried on the plane and you will never worry about anti-fog liquid leaking out and dirt your package. Fast Cleansing and Long Lasting Performance for all diving mask, goggles, Swimming glasses, eyewear, camera lens, mirrors, windows etc. Eco-Friendly: the new formula was examined by most authorized Environment Protection Agency. It is non-toxic and safe to human body and glasses. One Spray Makes the World Clearly! It can be used for 130+ times with super strong Anti-Fog performance (about 3 hours). More specific Instruction Guide can be found in the Description.