Anonymous
Mar 18, 2026
Rating: 5/5
Perfect for dive masks too
Bought this primarily for swimming but tried it on my scuba mask as well. It performed flawlessly during a deep dive. No fogging at all even after 45 minutes underwater.
Description
Reviews
| Brand | - |
| Category | Sports, Yoga, Fitness & Fan Gear / Anti-fog Agents & Films |
| Origin | - |
| Brand | Keep Swimming |
| Product Type | Anti-Fog Spray & Smearing Tool |
| Compatible With | Swimming Goggles, Prescription Lenses, Dive Masks |
| Formula Type | Non-Toxic Water-Based Solution |
| Application Method | Spray and Wipe / Smearing Pen |
| Duration per Application | Up to 8 Hours of Clear Vision |
| Volume | 30ml Bottle |
| Key Feature | Professional Grade Anti-Fog Protection |
| Scent | Odorless |
| Country of Origin | China |
Anonymous
Mar 18, 2026
Rating: 5/5
Perfect for dive masks too
Bought this primarily for swimming but tried it on my scuba mask as well. It performed flawlessly during a deep dive. No fogging at all even after 45 minutes underwater.
Anonymous
Mar 16, 2026
Rating: 5/5
Essential for winter swimming
The temperature difference between the cold air and the warm pool water used to fog up my lenses instantly. This magic tool completely prevents that. Highly recommended for outdoor swimmers.
Anonymous
Mar 14, 2026
Rating: 5/5
Finally no more foggy laps!
I swim five days a week and this spray is a game changer. One application lasts my entire morning session. It works perfectly on my prescription goggles without leaving any residue.
Anonymous
Mar 10, 2026
Rating: 4/5
Great value for the price
Works well on both my kids' goggles and my adult mask. The smearing tool makes it very easy to apply evenly. Took off one star because the bottle is a bit small, but it lasts a long time.
Anonymous
Mar 08, 2026
Rating: 4/5
Works as advertised
Very effective anti-fog agent. I appreciate that it is odorless and doesn't sting my eyes. The only reason I didn't give 5 stars is that you need to let it dry completely before entering the water.
Anonymous
Mar 04, 2026
Rating: 5/5
Better than spit!
I used to rely on the old spit trick, but it never lasted long. This professional defogger keeps my vision crystal clear for hours. No eye irritation whatsoever.
Q: Is this safe to use on contact lenses inside goggles?
A: Yes, our formula is non-toxic and safe for use with prescription lenses and contact lenses. However, we recommend applying it to the goggle lens, not directly onto the contact lens itself.
Q: Does this leave a sticky residue on the lenses?
A: No, when applied correctly and allowed to dry for 30 seconds before wiping gently, it leaves a clear, invisible film with no sticky residue.
Q: How often do I need to reapply the spray?
A: For most users, one application provides clear vision for up to 8 hours or multiple swimming sessions. If you rinse your goggles thoroughly with fresh water, you may need to reapply.
Q: Can children use this product?
A: Yes, it is safe for children. We suggest that an adult applies the product to the child's goggles to ensure proper application and to avoid getting it in their eyes during the process.
Q: What is the shelf life of the bottle once opened?
A: Once opened, the product remains effective for up to 12 months if stored in a cool, dry place away from direct sunlight. Please ensure the cap is tightly closed after each use.