How to clean the dirty camera lenses?

The camera lenses can be cleaned by following these steps if it is dirty:
Using a balloon or air blow: First, gently blow away the dust and particles on the surface of the lens using a balloon or air blow. This step is very important because wiping directly may embed dust particles on the surface of the lens, causing scratches. ‌
Use a soft bristled brush: If dust cannot be removed by air blowing, you can use a soft bristled brush to gently brush off the dust on the surface of the lens. Be careful not to apply too much force to avoid scratching the lens. ‌
Use lens cleaning cloth or lens paper: Drop a small amount of lens cleaning solution onto the lens paper, and then gently wipe the surface of the lens with lens paper or microfiber cloth. When wiping, it should be done from the center of the lens to the outer edge, avoiding back and forth wiping to prevent the spread of stains. ‌
Dealing with stubborn stains: For stubborn stains, you can use the toner tip of the lens pen to gently absorb oil stains, and then use a soft bristled brush to brush off excess toner. Be careful to apply light force to avoid scratching the lens. ‌
Inspection and drying: After wiping, carefully inspect the surface of the lens for any remaining stains or water marks. If necessary, repeat the above steps for cleaning. Finally, place the lens in a well ventilated and dry place to air dry naturally, avoiding the use of hot air to blow dry and prevent thermal damage to the lens.
Attention:
Avoid using regular tissues, towels, or clothing: these items may scratch the lens or leave fibers behind. ‌
Avoid using alcohol: Alcohol can damage the coating on the surface of the lens, so do not use alcohol when cleaning.
Choose appropriate cleaning tools: Use professional lens cleaning tools such as lens paper, lens cleaning solution, blowing balloons, and microfiber cloth.
By following the above steps and precautions, the camera lens can be effectively cleaned to maintain its clarity and lifespan.