Say goodbye to foggy sporting gear. The DR.FLIM Anti-fog spray works to prevent fogging in snorkel masks, scuba diving masks, swimming goggles and so much more. The DR.FLIM Anti-fog spray is created from biosurfactant, which is a class of compound that is extremely mild and biodegradable. This particular biosurfactant will bind loosely to the lens surfaces and create a nanolayer of hydrophobic film, which will protect them from water molecules. As a result, our anti-fog solution is gentle, effective and environmentally friendly.