1.ENVIRONMENT CONDITIONS

• Poor water quality, there is greasy oil and dirt.
• Over dosage of disinfectant and chlorine is added in the swimming pools.
• High temperature of over 75°C
• Sun light exposures directly.
• Chemical agents erosion.
• Lens surface is scratched.

2.THE FOLLOWING PEOPLE PHYSICS CAUSE FOGGING EASILY

• People sweat a lot easily cause greasy oil or one who has oily skin, the oil covers the anti-fog treatment and make the function fade away.
• People with longer eye lashes, it easily scratch the inside of the lens.

THE HABITS OF USAGE

• Foget to wash the swimming goggles with clean water after swimming. As a result, the greasy oil covers the anti-fog surface and lose function.
• Bring the swimming goggles into the sauna room, spas, etc, with high temperature. Different curing agents and chemicals in hot water also make the anti-fog lose function.
• Expose the swimming goggles directly below the sunlight, the strong UV light easily destroys the anti-fog chemical function.
• Leave the swimming goggles below the windshield of cars. (The high temperature and heat will damage the anti-fog system.)
• To clean the inside of lens with incorrect way. (Wipe gently on the inside of lens with dry cloth or finger tip.)

SWIMMING GOGGLES STYLES

• The space is small in the goggles, when sweating a lot causes the air inside full of fog; for example: taking a shower in a small bathroom, when the temperature and moisture is increasing and all the bathroom is full of fog.
• Take off the swimming goggles after wearing over 20 ~ 30 minutes and let the eyes have fresh air, also for the goggles.
• Poor anti-fog treatment result in poor anti-fog quality.
• The function of anti-fog is hydrophilic nature, rinse the goggles in water before wearing to get the best anti-fog function.

TIPS FOR MAINTENANCE

• Do not touch the inside of the lens with nails, fingers or other acute objects when wearing and cleaning to avoid scratching or damaging the anti-fog.
• Wash swimming goggles with clean water, it is not allowed to use organic solution, for example: alcohol and dilution agent.
• The function of anti-fog is hydrophilic nature, rinse the goggles in water before wearing to get the best anti-fog function.  
• It is commonly seen that the anti-fog function is impaired due to the attached dirt and sweat after swimming. That is, in other words, if oil dirt is coved over the lens itself, the anti-fog function is no longer available. Therefore, you will need to apply bubble detergent is applied onto it and finger nails may scratch the lens.)
  
• bubble detergent is applied onto it and finger nails may scratch the lens.) function, you may spray Fog Eater or apply saliva on it (without having to rinse up). This method could not guarantee an immortal use of your swimming goggles but could restore the function partially and temporarily. Again, the best way to keep your goggles in a better condition is to take care of it by the instructions specified above.
  
• Please do not expose swimming goggles below sun light or in a sauna chamber. Otherwise, the anti-fog function could be eliminated by the UV rays and heat, thereby reducing the swimming goggles’ lifetime.
  
• It is advised not to stretch the strap to extreme extent and not to dissemble the goggles unless necessary.