How to Make Anti-Fog Spray?

[VanJade]

Mix household dishwashing liquid and water in a ratio of 1:10. After mixing, use a towel to dip into the solution and evenly apply it on the car glass, then wait for it to air dry naturally. After wiping off all traces on the glass with a clean towel, a thin film will form on the glass surface, effectively blocking moisture and providing an anti-fog effect.

[PrestonLee]

Last winter, my car windows kept fogging up, so I made my own anti-fog spray that worked really well. The materials are simple: buy some isopropyl alcohol or regular rubbing alcohol from the pharmacy, mix it with distilled water—9 parts water to 1 part alcohol—and pour the mixture into a small spray bottle. Before use, shake it well, spray it onto a soft cloth, and gently wipe it on the inside of the windshield. The alcohol evaporates quickly without leaving streaks, and the anti-fog effect lasts for several days. The best part is it saves money—a bottle costs just a few yuan, much cheaper than store-bought versions. I also tried adding a drop of dish soap to enhance the effect, but don’t overdo it to avoid making the surface slippery. Store it in a cool place, and keep it away from heat sources since alcohol is flammable. This DIY spray also works on glasses or bathroom mirrors—super versatile and convenient.