Easy to Use: Begin by washing goggles with cold water, apply anti-fog agent, dip in water, and allow to partially dry for clear vision—simple application, dependable results. Wait for a few minutes until the anti-fog liquid on the swimming goggles is half dry, absorb a little cold water on the lens, let the anti-fog liquid adhere evenly to the lens, pour cold water and wait for a few minutes before going into the water.