AIR OPTIX® AQUA contact lenses have a unique ultra-smooth surface technology that creates a protective layer of moisture at the surface that resists irritating deposits. Irritating deposits like dust, dirt, and lipids can build up on contact lenses which can make it difficult for them to stay clean and comfortable. AIR OPTIX® AQUA contact lenses take a unique approach. Ultra-Smooth Surface Technology allows tears to spread evenly across the contact lens, creating a protective layer of moisture that resists irritating deposits. The result is a contact lens that offers clear vision and consistent comfort. Plus their monthly replacement schedule is easy to remember.